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Finding the Fourth Proportional to 67,649.92, 93,366.80 and 38,964.00

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Solution

The fourth proportional to 67,649.92, 93,366.80 and 38,964.00 is: 53,776.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,649.92 : 93,366.80 = 38,964.00 : x
  2. Step 2: Convert to fraction form
    67,649.92/93,366.80 = 38,964.00/x
  3. Step 3: Cross multiply
    67,649.92x = 93,366.80 × 38,964.00
  4. Step 4: Simplify right side
    67,649.92x = 3,637,943,618.42
  5. Step 5: Solve for x
    x = 3,637,943,618.42/67,649.92
  6. Step 6: Final answer
    x = 53,776.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.