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Finding the Fourth Proportional to 52,279.69, 72,130.08 and 29,615.08

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Solution

The fourth proportional to 52,279.69, 72,130.08 and 29,615.08 is: 40,859.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,279.69 : 72,130.08 = 29,615.08 : x
  2. Step 2: Convert to fraction form
    52,279.69/72,130.08 = 29,615.08/x
  3. Step 3: Cross multiply
    52,279.69x = 72,130.08 × 29,615.08
  4. Step 4: Simplify right side
    52,279.69x = 2,136,138,089.61
  5. Step 5: Solve for x
    x = 2,136,138,089.61/52,279.69
  6. Step 6: Final answer
    x = 40,859.81

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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.