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Finding the Fourth Proportional to 64,002.80, 96,119.40 and 61,929.20

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Solution

The fourth proportional to 64,002.80, 96,119.40 and 61,929.20 is: 93,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,002.80 : 96,119.40 = 61,929.20 : x
  2. Step 2: Convert to fraction form
    64,002.80/96,119.40 = 61,929.20/x
  3. Step 3: Cross multiply
    64,002.80x = 96,119.40 × 61,929.20
  4. Step 4: Simplify right side
    64,002.80x = 5,952,597,546.48
  5. Step 5: Solve for x
    x = 5,952,597,546.48/64,002.80
  6. Step 6: Final answer
    x = 93,005.27

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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.