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Finding the Fourth Proportional to 64,355.20, 96,532.80 and 59,689.60

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Solution

The fourth proportional to 64,355.20, 96,532.80 and 59,689.60 is: 89,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,355.20 : 96,532.80 = 59,689.60 : x
  2. Step 2: Convert to fraction form
    64,355.20/96,532.80 = 59,689.60/x
  3. Step 3: Cross multiply
    64,355.20x = 96,532.80 × 59,689.60
  4. Step 4: Simplify right side
    64,355.20x = 5,762,004,218.88
  5. Step 5: Solve for x
    x = 5,762,004,218.88/64,355.20
  6. Step 6: Final answer
    x = 89,534.40

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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.