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Finding the Fourth Proportional to 87,225.60, 130,748.64 and 34,672.32

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Solution

The fourth proportional to 87,225.60, 130,748.64 and 34,672.32 is: 51,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225.60 : 130,748.64 = 34,672.32 : x
  2. Step 2: Convert to fraction form
    87,225.60/130,748.64 = 34,672.32/x
  3. Step 3: Cross multiply
    87,225.60x = 130,748.64 × 34,672.32
  4. Step 4: Simplify right side
    87,225.60x = 4,533,358,685.64
  5. Step 5: Solve for x
    x = 4,533,358,685.64/87,225.60
  6. Step 6: Final answer
    x = 51,972.80

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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.