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Finding the Fourth Proportional to 64,003.80, 96,005.70 and 61,411.80

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Solution

The fourth proportional to 64,003.80, 96,005.70 and 61,411.80 is: 92,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,003.80 : 96,005.70 = 61,411.80 : x
  2. Step 2: Convert to fraction form
    64,003.80/96,005.70 = 61,411.80/x
  3. Step 3: Cross multiply
    64,003.80x = 96,005.70 × 61,411.80
  4. Step 4: Simplify right side
    64,003.80x = 5,895,882,847.26
  5. Step 5: Solve for x
    x = 5,895,882,847.26/64,003.80
  6. Step 6: Final answer
    x = 92,117.70

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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.