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Finding the Fourth Proportional to 32,079.88, 48,117.90 and 8,705.80

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Solution

The fourth proportional to 32,079.88, 48,117.90 and 8,705.80 is: 13,058.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,079.88 : 48,117.90 = 8,705.80 : x
  2. Step 2: Convert to fraction form
    32,079.88/48,117.90 = 8,705.80/x
  3. Step 3: Cross multiply
    32,079.88x = 48,117.90 × 8,705.80
  4. Step 4: Simplify right side
    32,079.88x = 418,904,813.82
  5. Step 5: Solve for x
    x = 418,904,813.82/32,079.88
  6. Step 6: Final answer
    x = 13,058.18

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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.