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Finding the Fourth Proportional to 64,997.92, 97,497.36 and 20,624.80

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Solution

The fourth proportional to 64,997.92, 97,497.36 and 20,624.80 is: 30,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,997.92 : 97,497.36 = 20,624.80 : x
  2. Step 2: Convert to fraction form
    64,997.92/97,497.36 = 20,624.80/x
  3. Step 3: Cross multiply
    64,997.92x = 97,497.36 × 20,624.80
  4. Step 4: Simplify right side
    64,997.92x = 2,010,863,550.53
  5. Step 5: Solve for x
    x = 2,010,863,550.53/64,997.92
  6. Step 6: Final answer
    x = 30,937.35

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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.