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Finding the Fourth Proportional to 89,512.76, 134,275.62 and 27,188.12

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Solution

The fourth proportional to 89,512.76, 134,275.62 and 27,188.12 is: 40,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,512.76 : 134,275.62 = 27,188.12 : x
  2. Step 2: Convert to fraction form
    89,512.76/134,275.62 = 27,188.12/x
  3. Step 3: Cross multiply
    89,512.76x = 134,275.62 × 27,188.12
  4. Step 4: Simplify right side
    89,512.76x = 3,650,701,669.63
  5. Step 5: Solve for x
    x = 3,650,701,669.63/89,512.76
  6. Step 6: Final answer
    x = 40,784.15

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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.