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Finding the Fourth Proportional to 71,316.74, 98,394.90 and 47,447.46

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Solution

The fourth proportional to 71,316.74, 98,394.90 and 47,447.46 is: 65,462.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,316.74 : 98,394.90 = 47,447.46 : x
  2. Step 2: Convert to fraction form
    71,316.74/98,394.90 = 47,447.46/x
  3. Step 3: Cross multiply
    71,316.74x = 98,394.90 × 47,447.46
  4. Step 4: Simplify right side
    71,316.74x = 4,668,588,081.95
  5. Step 5: Solve for x
    x = 4,668,588,081.95/71,316.74
  6. Step 6: Final answer
    x = 65,462.73

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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.