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Finding the Fourth Proportional to 27,319.52, 40,980.92 and 8,600.16

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Solution

The fourth proportional to 27,319.52, 40,980.92 and 8,600.16 is: 12,900.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,319.52 : 40,980.92 = 8,600.16 : x
  2. Step 2: Convert to fraction form
    27,319.52/40,980.92 = 8,600.16/x
  3. Step 3: Cross multiply
    27,319.52x = 40,980.92 × 8,600.16
  4. Step 4: Simplify right side
    27,319.52x = 352,442,468.95
  5. Step 5: Solve for x
    x = 352,442,468.95/27,319.52
  6. Step 6: Final answer
    x = 12,900.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.