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Finding the Fourth Proportional to 18,130.52, 25,019.83 and 10,064.17

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Solution

The fourth proportional to 18,130.52, 25,019.83 and 10,064.17 is: 13,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.52 : 25,019.83 = 10,064.17 : x
  2. Step 2: Convert to fraction form
    18,130.52/25,019.83 = 10,064.17/x
  3. Step 3: Cross multiply
    18,130.52x = 25,019.83 × 10,064.17
  4. Step 4: Simplify right side
    18,130.52x = 251,803,822.49
  5. Step 5: Solve for x
    x = 251,803,822.49/18,130.52
  6. Step 6: Final answer
    x = 13,888.39

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Half scale
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Double scale
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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.