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Finding the Fourth Proportional to 71,856.88, 99,126.84 and 48,015.52

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Solution

The fourth proportional to 71,856.88, 99,126.84 and 48,015.52 is: 66,237.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,856.88 : 99,126.84 = 48,015.52 : x
  2. Step 2: Convert to fraction form
    71,856.88/99,126.84 = 48,015.52/x
  3. Step 3: Cross multiply
    71,856.88x = 99,126.84 × 48,015.52
  4. Step 4: Simplify right side
    71,856.88x = 4,759,626,768.56
  5. Step 5: Solve for x
    x = 4,759,626,768.56/71,856.88
  6. Step 6: Final answer
    x = 66,237.59

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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.