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Finding the Fourth Proportional to 64,205.70, 96,308.55 and 52,395.90

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Solution

The fourth proportional to 64,205.70, 96,308.55 and 52,395.90 is: 78,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,205.70 : 96,308.55 = 52,395.90 : x
  2. Step 2: Convert to fraction form
    64,205.70/96,308.55 = 52,395.90/x
  3. Step 3: Cross multiply
    64,205.70x = 96,308.55 × 52,395.90
  4. Step 4: Simplify right side
    64,205.70x = 5,046,173,154.95
  5. Step 5: Solve for x
    x = 5,046,173,154.95/64,205.70
  6. Step 6: Final answer
    x = 78,593.85

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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.