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Finding the Fourth Proportional to 55,910.80, 83,963.40 and 29,666.80

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Solution

The fourth proportional to 55,910.80, 83,963.40 and 29,666.80 is: 44,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,910.80 : 83,963.40 = 29,666.80 : x
  2. Step 2: Convert to fraction form
    55,910.80/83,963.40 = 29,666.80/x
  3. Step 3: Cross multiply
    55,910.80x = 83,963.40 × 29,666.80
  4. Step 4: Simplify right side
    55,910.80x = 2,490,925,395.12
  5. Step 5: Solve for x
    x = 2,490,925,395.12/55,910.80
  6. Step 6: Final answer
    x = 44,551.78

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1.5x scale

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.