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Finding the Fourth Proportional to 29,362.60, 40,520.42 and 16,787.64

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Solution

The fourth proportional to 29,362.60, 40,520.42 and 16,787.64 is: 23,166.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,362.60 : 40,520.42 = 16,787.64 : x
  2. Step 2: Convert to fraction form
    29,362.60/40,520.42 = 16,787.64/x
  3. Step 3: Cross multiply
    29,362.60x = 40,520.42 × 16,787.64
  4. Step 4: Simplify right side
    29,362.60x = 680,242,223.61
  5. Step 5: Solve for x
    x = 680,242,223.61/29,362.60
  6. Step 6: Final answer
    x = 23,166.96

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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.