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Finding the Fourth Proportional to 15,061.68, 20,784.96 and 9,016.02

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Solution

The fourth proportional to 15,061.68, 20,784.96 and 9,016.02 is: 12,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,061.68 : 20,784.96 = 9,016.02 : x
  2. Step 2: Convert to fraction form
    15,061.68/20,784.96 = 9,016.02/x
  3. Step 3: Cross multiply
    15,061.68x = 20,784.96 × 9,016.02
  4. Step 4: Simplify right side
    15,061.68x = 187,397,615.06
  5. Step 5: Solve for x
    x = 187,397,615.06/15,061.68
  6. Step 6: Final answer
    x = 12,442.01

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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.