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Finding the Fourth Proportional to 48,889.98, 67,472.52 and 28,736.76

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Solution

The fourth proportional to 48,889.98, 67,472.52 and 28,736.76 is: 39,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,889.98 : 67,472.52 = 28,736.76 : x
  2. Step 2: Convert to fraction form
    48,889.98/67,472.52 = 28,736.76/x
  3. Step 3: Cross multiply
    48,889.98x = 67,472.52 × 28,736.76
  4. Step 4: Simplify right side
    48,889.98x = 1,938,941,613.84
  5. Step 5: Solve for x
    x = 1,938,941,613.84/48,889.98
  6. Step 6: Final answer
    x = 39,659.28

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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.