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Finding the Fourth Proportional to 71,062.01, 98,064.93 and 39,230.22

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Solution

The fourth proportional to 71,062.01, 98,064.93 and 39,230.22 is: 54,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,062.01 : 98,064.93 = 39,230.22 : x
  2. Step 2: Convert to fraction form
    71,062.01/98,064.93 = 39,230.22/x
  3. Step 3: Cross multiply
    71,062.01x = 98,064.93 × 39,230.22
  4. Step 4: Simplify right side
    71,062.01x = 3,847,108,778.18
  5. Step 5: Solve for x
    x = 3,847,108,778.18/71,062.01
  6. Step 6: Final answer
    x = 54,137.35

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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.