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Finding the Fourth Proportional to 9,008.71, 12,431.95 and 5,029.79

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Solution

The fourth proportional to 9,008.71, 12,431.95 and 5,029.79 is: 6,941.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.71 : 12,431.95 = 5,029.79 : x
  2. Step 2: Convert to fraction form
    9,008.71/12,431.95 = 5,029.79/x
  3. Step 3: Cross multiply
    9,008.71x = 12,431.95 × 5,029.79
  4. Step 4: Simplify right side
    9,008.71x = 62,530,023.06
  5. Step 5: Solve for x
    x = 62,530,023.06/9,008.71
  6. Step 6: Final answer
    x = 6,941.06

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1.5x scale

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.