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Finding the Fourth Proportional to 23,118.53, 31,895.03 and 15,165.14

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Solution

The fourth proportional to 23,118.53, 31,895.03 and 15,165.14 is: 20,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.53 : 31,895.03 = 15,165.14 : x
  2. Step 2: Convert to fraction form
    23,118.53/31,895.03 = 15,165.14/x
  3. Step 3: Cross multiply
    23,118.53x = 31,895.03 × 15,165.14
  4. Step 4: Simplify right side
    23,118.53x = 483,692,473.69
  5. Step 5: Solve for x
    x = 483,692,473.69/23,118.53
  6. Step 6: Final answer
    x = 20,922.29

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Half scale
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Double scale
Find fourth proportional to 23,119.53, 31,896.41 and 15,166.14
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.