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Finding the Fourth Proportional to 19,657.42, 27,126.42 and 10,704.90

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Solution

The fourth proportional to 19,657.42, 27,126.42 and 10,704.90 is: 14,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.42 : 27,126.42 = 10,704.90 : x
  2. Step 2: Convert to fraction form
    19,657.42/27,126.42 = 10,704.90/x
  3. Step 3: Cross multiply
    19,657.42x = 27,126.42 × 10,704.90
  4. Step 4: Simplify right side
    19,657.42x = 290,385,613.46
  5. Step 5: Solve for x
    x = 290,385,613.46/19,657.42
  6. Step 6: Final answer
    x = 14,772.32

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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.