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Finding the Fourth Proportional to 63,543.68, 87,689.04 and 35,249.12

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Solution

The fourth proportional to 63,543.68, 87,689.04 and 35,249.12 is: 48,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,543.68 : 87,689.04 = 35,249.12 : x
  2. Step 2: Convert to fraction form
    63,543.68/87,689.04 = 35,249.12/x
  3. Step 3: Cross multiply
    63,543.68x = 87,689.04 × 35,249.12
  4. Step 4: Simplify right side
    63,543.68x = 3,090,961,493.64
  5. Step 5: Solve for x
    x = 3,090,961,493.64/63,543.68
  6. Step 6: Final answer
    x = 48,643.10

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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.