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Finding the Fourth Proportional to 45,642.60, 63,002.88 and 26,785.80

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Solution

The fourth proportional to 45,642.60, 63,002.88 and 26,785.80 is: 36,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,642.60 : 63,002.88 = 26,785.80 : x
  2. Step 2: Convert to fraction form
    45,642.60/63,002.88 = 26,785.80/x
  3. Step 3: Cross multiply
    45,642.60x = 63,002.88 × 26,785.80
  4. Step 4: Simplify right side
    45,642.60x = 1,687,582,543.10
  5. Step 5: Solve for x
    x = 1,687,582,543.10/45,642.60
  6. Step 6: Final answer
    x = 36,973.85

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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.