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Finding the Fourth Proportional to 19,489.76, 29,216.08 and 6,332.88

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Solution

The fourth proportional to 19,489.76, 29,216.08 and 6,332.88 is: 9,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.76 : 29,216.08 = 6,332.88 : x
  2. Step 2: Convert to fraction form
    19,489.76/29,216.08 = 6,332.88/x
  3. Step 3: Cross multiply
    19,489.76x = 29,216.08 × 6,332.88
  4. Step 4: Simplify right side
    19,489.76x = 185,021,928.71
  5. Step 5: Solve for x
    x = 185,021,928.71/19,489.76
  6. Step 6: Final answer
    x = 9,493.29

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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.