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Finding the Fourth Proportional to 71,484.02, 98,647.25 and 39,652.10

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Solution

The fourth proportional to 71,484.02, 98,647.25 and 39,652.10 is: 54,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,484.02 : 98,647.25 = 39,652.10 : x
  2. Step 2: Convert to fraction form
    71,484.02/98,647.25 = 39,652.10/x
  3. Step 3: Cross multiply
    71,484.02x = 98,647.25 × 39,652.10
  4. Step 4: Simplify right side
    71,484.02x = 3,911,570,621.73
  5. Step 5: Solve for x
    x = 3,911,570,621.73/71,484.02
  6. Step 6: Final answer
    x = 54,719.51

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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.