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Finding the Fourth Proportional to 18,305.99, 25,262.14 and 10,348.19

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Solution

The fourth proportional to 18,305.99, 25,262.14 and 10,348.19 is: 14,280.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.99 : 25,262.14 = 10,348.19 : x
  2. Step 2: Convert to fraction form
    18,305.99/25,262.14 = 10,348.19/x
  3. Step 3: Cross multiply
    18,305.99x = 25,262.14 × 10,348.19
  4. Step 4: Simplify right side
    18,305.99x = 261,417,424.53
  5. Step 5: Solve for x
    x = 261,417,424.53/18,305.99
  6. Step 6: Final answer
    x = 14,280.43

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Half scale
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Double scale
Find fourth proportional to 18,306.99, 25,263.52 and 10,349.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.