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Finding the Fourth Proportional to 39,900.48, 59,860.96 and 14,940.88

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Solution

The fourth proportional to 39,900.48, 59,860.96 and 14,940.88 is: 22,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,900.48 : 59,860.96 = 14,940.88 : x
  2. Step 2: Convert to fraction form
    39,900.48/59,860.96 = 14,940.88/x
  3. Step 3: Cross multiply
    39,900.48x = 59,860.96 × 14,940.88
  4. Step 4: Simplify right side
    39,900.48x = 894,375,420.04
  5. Step 5: Solve for x
    x = 894,375,420.04/39,900.48
  6. Step 6: Final answer
    x = 22,415.15

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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.