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Finding the Fourth Proportional to 52,278.70, 72,128.70 and 29,614.08

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Solution

The fourth proportional to 52,278.70, 72,128.70 and 29,614.08 is: 40,858.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.70 : 72,128.70 = 29,614.08 : x
  2. Step 2: Convert to fraction form
    52,278.70/72,128.70 = 29,614.08/x
  3. Step 3: Cross multiply
    52,278.70x = 72,128.70 × 29,614.08
  4. Step 4: Simplify right side
    52,278.70x = 2,136,025,092.10
  5. Step 5: Solve for x
    x = 2,136,025,092.10/52,278.70
  6. Step 6: Final answer
    x = 40,858.42

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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.