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Finding the Fourth Proportional to 29,291.98, 40,432.80 and 17,806.86

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Solution

The fourth proportional to 29,291.98, 40,432.80 and 17,806.86 is: 24,579.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,291.98 : 40,432.80 = 17,806.86 : x
  2. Step 2: Convert to fraction form
    29,291.98/40,432.80 = 17,806.86/x
  3. Step 3: Cross multiply
    29,291.98x = 40,432.80 × 17,806.86
  4. Step 4: Simplify right side
    29,291.98x = 719,981,209.01
  5. Step 5: Solve for x
    x = 719,981,209.01/29,291.98
  6. Step 6: Final answer
    x = 24,579.47

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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.