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Finding the Fourth Proportional to 29,491.48, 40,739.52 and 20,534.50

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Solution

The fourth proportional to 29,491.48, 40,739.52 and 20,534.50 is: 28,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,491.48 : 40,739.52 = 20,534.50 : x
  2. Step 2: Convert to fraction form
    29,491.48/40,739.52 = 20,534.50/x
  3. Step 3: Cross multiply
    29,491.48x = 40,739.52 × 20,534.50
  4. Step 4: Simplify right side
    29,491.48x = 836,565,673.44
  5. Step 5: Solve for x
    x = 836,565,673.44/29,491.48
  6. Step 6: Final answer
    x = 28,366.35

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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.