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Finding the Fourth Proportional to 42,882.80, 64,331.80 and 14,800.64

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Solution

The fourth proportional to 42,882.80, 64,331.80 and 14,800.64 is: 22,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,882.80 : 64,331.80 = 14,800.64 : x
  2. Step 2: Convert to fraction form
    42,882.80/64,331.80 = 14,800.64/x
  3. Step 3: Cross multiply
    42,882.80x = 64,331.80 × 14,800.64
  4. Step 4: Simplify right side
    42,882.80x = 952,151,812.35
  5. Step 5: Solve for x
    x = 952,151,812.35/42,882.80
  6. Step 6: Final answer
    x = 22,203.58

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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.