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Finding the Fourth Proportional to 67,275.64, 92,856.84 and 38,997.76

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Solution

The fourth proportional to 67,275.64, 92,856.84 and 38,997.76 is: 53,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,275.64 : 92,856.84 = 38,997.76 : x
  2. Step 2: Convert to fraction form
    67,275.64/92,856.84 = 38,997.76/x
  3. Step 3: Cross multiply
    67,275.64x = 92,856.84 × 38,997.76
  4. Step 4: Simplify right side
    67,275.64x = 3,621,208,760.68
  5. Step 5: Solve for x
    x = 3,621,208,760.68/67,275.64
  6. Step 6: Final answer
    x = 53,826.45

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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.