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Finding the Fourth Proportional to 71,459.42, 98,610.62 and 39,627.63

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Solution

The fourth proportional to 71,459.42, 98,610.62 and 39,627.63 is: 54,684.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,459.42 : 98,610.62 = 39,627.63 : x
  2. Step 2: Convert to fraction form
    71,459.42/98,610.62 = 39,627.63/x
  3. Step 3: Cross multiply
    71,459.42x = 98,610.62 × 39,627.63
  4. Step 4: Simplify right side
    71,459.42x = 3,907,704,965.29
  5. Step 5: Solve for x
    x = 3,907,704,965.29/71,459.42
  6. Step 6: Final answer
    x = 54,684.26

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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.