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Finding the Fourth Proportional to 40,553.92, 60,840.48 and 12,851.92

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Solution

The fourth proportional to 40,553.92, 60,840.48 and 12,851.92 is: 19,280.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,553.92 : 60,840.48 = 12,851.92 : x
  2. Step 2: Convert to fraction form
    40,553.92/60,840.48 = 12,851.92/x
  3. Step 3: Cross multiply
    40,553.92x = 60,840.48 × 12,851.92
  4. Step 4: Simplify right side
    40,553.92x = 781,916,981.72
  5. Step 5: Solve for x
    x = 781,916,981.72/40,553.92
  6. Step 6: Final answer
    x = 19,280.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.