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Finding the Fourth Proportional to 55,902.80, 83,854.20 and 51,966.20

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Solution

The fourth proportional to 55,902.80, 83,854.20 and 51,966.20 is: 77,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,902.80 : 83,854.20 = 51,966.20 : x
  2. Step 2: Convert to fraction form
    55,902.80/83,854.20 = 51,966.20/x
  3. Step 3: Cross multiply
    55,902.80x = 83,854.20 × 51,966.20
  4. Step 4: Simplify right side
    55,902.80x = 4,357,584,128.04
  5. Step 5: Solve for x
    x = 4,357,584,128.04/55,902.80
  6. Step 6: Final answer
    x = 77,949.30

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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.