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Finding the Fourth Proportional to 32,360.64, 48,541.28 and 8,987.20

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Solution

The fourth proportional to 32,360.64, 48,541.28 and 8,987.20 is: 13,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,360.64 : 48,541.28 = 8,987.20 : x
  2. Step 2: Convert to fraction form
    32,360.64/48,541.28 = 8,987.20/x
  3. Step 3: Cross multiply
    32,360.64x = 48,541.28 × 8,987.20
  4. Step 4: Simplify right side
    32,360.64x = 436,250,191.62
  5. Step 5: Solve for x
    x = 436,250,191.62/32,360.64
  6. Step 6: Final answer
    x = 13,480.89

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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.