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Finding the Fourth Proportional to 14,956.93, 20,641.48 and 8,242.55

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Solution

The fourth proportional to 14,956.93, 20,641.48 and 8,242.55 is: 11,375.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,956.93 : 20,641.48 = 8,242.55 : x
  2. Step 2: Convert to fraction form
    14,956.93/20,641.48 = 8,242.55/x
  3. Step 3: Cross multiply
    14,956.93x = 20,641.48 × 8,242.55
  4. Step 4: Simplify right side
    14,956.93x = 170,138,430.97
  5. Step 5: Solve for x
    x = 170,138,430.97/14,956.93
  6. Step 6: Final answer
    x = 11,375.22

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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.