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Finding the Fourth Proportional to 29,142.80, 43,613.40 and 17,464.40

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Solution

The fourth proportional to 29,142.80, 43,613.40 and 17,464.40 is: 26,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,142.80 : 43,613.40 = 17,464.40 : x
  2. Step 2: Convert to fraction form
    29,142.80/43,613.40 = 17,464.40/x
  3. Step 3: Cross multiply
    29,142.80x = 43,613.40 × 17,464.40
  4. Step 4: Simplify right side
    29,142.80x = 761,681,862.96
  5. Step 5: Solve for x
    x = 761,681,862.96/29,142.80
  6. Step 6: Final answer
    x = 26,136.19

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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.