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Finding the Fourth Proportional to 67,143.68, 92,660.54 and 36,931.34

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Solution

The fourth proportional to 67,143.68, 92,660.54 and 36,931.34 is: 50,966.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143.68 : 92,660.54 = 36,931.34 : x
  2. Step 2: Convert to fraction form
    67,143.68/92,660.54 = 36,931.34/x
  3. Step 3: Cross multiply
    67,143.68x = 92,660.54 × 36,931.34
  4. Step 4: Simplify right side
    67,143.68x = 3,422,077,444.02
  5. Step 5: Solve for x
    x = 3,422,077,444.02/67,143.68
  6. Step 6: Final answer
    x = 50,966.49

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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.