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Finding the Fourth Proportional to 29,287.98, 40,407.53 and 19,074.42

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Solution

The fourth proportional to 29,287.98, 40,407.53 and 19,074.42 is: 26,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,287.98 : 40,407.53 = 19,074.42 : x
  2. Step 2: Convert to fraction form
    29,287.98/40,407.53 = 19,074.42/x
  3. Step 3: Cross multiply
    29,287.98x = 40,407.53 × 19,074.42
  4. Step 4: Simplify right side
    29,287.98x = 770,750,103.01
  5. Step 5: Solve for x
    x = 770,750,103.01/29,287.98
  6. Step 6: Final answer
    x = 26,316.26

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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.