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Finding the Fourth Proportional to 60,586.90, 90,873.88 and 21,144.76

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Solution

The fourth proportional to 60,586.90, 90,873.88 and 21,144.76 is: 31,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,586.90 : 90,873.88 = 21,144.76 : x
  2. Step 2: Convert to fraction form
    60,586.90/90,873.88 = 21,144.76/x
  3. Step 3: Cross multiply
    60,586.90x = 90,873.88 × 21,144.76
  4. Step 4: Simplify right side
    60,586.90x = 1,921,506,382.87
  5. Step 5: Solve for x
    x = 1,921,506,382.87/60,586.90
  6. Step 6: Final answer
    x = 31,714.88

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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.