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Finding the Fourth Proportional to 62,102.70, 85,701.78 and 33,807.78

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Solution

The fourth proportional to 62,102.70, 85,701.78 and 33,807.78 is: 46,654.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,102.70 : 85,701.78 = 33,807.78 : x
  2. Step 2: Convert to fraction form
    62,102.70/85,701.78 = 33,807.78/x
  3. Step 3: Cross multiply
    62,102.70x = 85,701.78 × 33,807.78
  4. Step 4: Simplify right side
    62,102.70x = 2,897,386,923.85
  5. Step 5: Solve for x
    x = 2,897,386,923.85/62,102.70
  6. Step 6: Final answer
    x = 46,654.77

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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.