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Finding the Fourth Proportional to 48,486.96, 67,031.28 and 48,043.44

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Solution

The fourth proportional to 48,486.96, 67,031.28 and 48,043.44 is: 66,418.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,486.96 : 67,031.28 = 48,043.44 : x
  2. Step 2: Convert to fraction form
    48,486.96/67,031.28 = 48,043.44/x
  3. Step 3: Cross multiply
    48,486.96x = 67,031.28 × 48,043.44
  4. Step 4: Simplify right side
    48,486.96x = 3,220,413,278.80
  5. Step 5: Solve for x
    x = 3,220,413,278.80/48,486.96
  6. Step 6: Final answer
    x = 66,418.13

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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.