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Finding the Fourth Proportional to 18,038.57, 24,894.68 and 9,972.92

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Solution

The fourth proportional to 18,038.57, 24,894.68 and 9,972.92 is: 13,763.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.57 : 24,894.68 = 9,972.92 : x
  2. Step 2: Convert to fraction form
    18,038.57/24,894.68 = 9,972.92/x
  3. Step 3: Cross multiply
    18,038.57x = 24,894.68 × 9,972.92
  4. Step 4: Simplify right side
    18,038.57x = 248,272,664.44
  5. Step 5: Solve for x
    x = 248,272,664.44/18,038.57
  6. Step 6: Final answer
    x = 13,763.44

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Double scale
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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.