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Finding the Fourth Proportional to 51,959.55, 71,703.95 and 28,086.17

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Solution

The fourth proportional to 51,959.55, 71,703.95 and 28,086.17 is: 38,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,959.55 : 71,703.95 = 28,086.17 : x
  2. Step 2: Convert to fraction form
    51,959.55/71,703.95 = 28,086.17/x
  3. Step 3: Cross multiply
    51,959.55x = 71,703.95 × 28,086.17
  4. Step 4: Simplify right side
    51,959.55x = 2,013,888,830.42
  5. Step 5: Solve for x
    x = 2,013,888,830.42/51,959.55
  6. Step 6: Final answer
    x = 38,758.78

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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.