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Finding the Fourth Proportional to 62,221.76, 85,863.12 and 35,363.60

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Solution

The fourth proportional to 62,221.76, 85,863.12 and 35,363.60 is: 48,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,221.76 : 85,863.12 = 35,363.60 : x
  2. Step 2: Convert to fraction form
    62,221.76/85,863.12 = 35,363.60/x
  3. Step 3: Cross multiply
    62,221.76x = 85,863.12 × 35,363.60
  4. Step 4: Simplify right side
    62,221.76x = 3,036,429,030.43
  5. Step 5: Solve for x
    x = 3,036,429,030.43/62,221.76
  6. Step 6: Final answer
    x = 48,800.11

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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.