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Finding the Fourth Proportional to 60,479.39, 90,707.24 and 57,478.88

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Solution

The fourth proportional to 60,479.39, 90,707.24 and 57,478.88 is: 86,207.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,479.39 : 90,707.24 = 57,478.88 : x
  2. Step 2: Convert to fraction form
    60,479.39/90,707.24 = 57,478.88/x
  3. Step 3: Cross multiply
    60,479.39x = 90,707.24 × 57,478.88
  4. Step 4: Simplify right side
    60,479.39x = 5,213,750,933.56
  5. Step 5: Solve for x
    x = 5,213,750,933.56/60,479.39
  6. Step 6: Final answer
    x = 86,207.07

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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.