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Finding the Fourth Proportional to 29,362.40, 40,520.16 and 16,787.15

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Solution

The fourth proportional to 29,362.40, 40,520.16 and 16,787.15 is: 23,166.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,362.40 : 40,520.16 = 16,787.15 : x
  2. Step 2: Convert to fraction form
    29,362.40/40,520.16 = 16,787.15/x
  3. Step 3: Cross multiply
    29,362.40x = 40,520.16 × 16,787.15
  4. Step 4: Simplify right side
    29,362.40x = 680,217,801.34
  5. Step 5: Solve for x
    x = 680,217,801.34/29,362.40
  6. Step 6: Final answer
    x = 23,166.29

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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.