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Finding the Fourth Proportional to 65,672.10, 98,508.15 and 48,832.20

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Solution

The fourth proportional to 65,672.10, 98,508.15 and 48,832.20 is: 73,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,672.10 : 98,508.15 = 48,832.20 : x
  2. Step 2: Convert to fraction form
    65,672.10/98,508.15 = 48,832.20/x
  3. Step 3: Cross multiply
    65,672.10x = 98,508.15 × 48,832.20
  4. Step 4: Simplify right side
    65,672.10x = 4,810,369,682.43
  5. Step 5: Solve for x
    x = 4,810,369,682.43/65,672.10
  6. Step 6: Final answer
    x = 73,248.30

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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.