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Finding the Fourth Proportional to 60,493.32, 90,758.40 and 30,931.92

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Solution

The fourth proportional to 60,493.32, 90,758.40 and 30,931.92 is: 46,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,493.32 : 90,758.40 = 30,931.92 : x
  2. Step 2: Convert to fraction form
    60,493.32/90,758.40 = 30,931.92/x
  3. Step 3: Cross multiply
    60,493.32x = 90,758.40 × 30,931.92
  4. Step 4: Simplify right side
    60,493.32x = 2,807,331,568.13
  5. Step 5: Solve for x
    x = 2,807,331,568.13/60,493.32
  6. Step 6: Final answer
    x = 46,407.30

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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.