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Finding the Fourth Proportional to 71,208.92, 98,246.12 and 47,339.64

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Solution

The fourth proportional to 71,208.92, 98,246.12 and 47,339.64 is: 65,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208.92 : 98,246.12 = 47,339.64 : x
  2. Step 2: Convert to fraction form
    71,208.92/98,246.12 = 47,339.64/x
  3. Step 3: Cross multiply
    71,208.92x = 98,246.12 × 47,339.64
  4. Step 4: Simplify right side
    71,208.92x = 4,650,935,715.50
  5. Step 5: Solve for x
    x = 4,650,935,715.50/71,208.92
  6. Step 6: Final answer
    x = 65,313.95

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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.