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Finding the Fourth Proportional to 35,128.80, 52,822.80 and 29,426.40

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Solution

The fourth proportional to 35,128.80, 52,822.80 and 29,426.40 is: 44,248.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,128.80 : 52,822.80 = 29,426.40 : x
  2. Step 2: Convert to fraction form
    35,128.80/52,822.80 = 29,426.40/x
  3. Step 3: Cross multiply
    35,128.80x = 52,822.80 × 29,426.40
  4. Step 4: Simplify right side
    35,128.80x = 1,554,384,841.92
  5. Step 5: Solve for x
    x = 1,554,384,841.92/35,128.80
  6. Step 6: Final answer
    x = 44,248.16

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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.