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Finding the Fourth Proportional to 64,920.96, 97,613.28 and 59,788.80

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Solution

The fourth proportional to 64,920.96, 97,613.28 and 59,788.80 is: 89,896.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,920.96 : 97,613.28 = 59,788.80 : x
  2. Step 2: Convert to fraction form
    64,920.96/97,613.28 = 59,788.80/x
  3. Step 3: Cross multiply
    64,920.96x = 97,613.28 × 59,788.80
  4. Step 4: Simplify right side
    64,920.96x = 5,836,180,875.26
  5. Step 5: Solve for x
    x = 5,836,180,875.26/64,920.96
  6. Step 6: Final answer
    x = 89,896.71

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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.