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Finding the Fourth Proportional to 38,908.92, 58,378.50 and 15,551.76

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Solution

The fourth proportional to 38,908.92, 58,378.50 and 15,551.76 is: 23,333.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,908.92 : 58,378.50 = 15,551.76 : x
  2. Step 2: Convert to fraction form
    38,908.92/58,378.50 = 15,551.76/x
  3. Step 3: Cross multiply
    38,908.92x = 58,378.50 × 15,551.76
  4. Step 4: Simplify right side
    38,908.92x = 907,888,421.16
  5. Step 5: Solve for x
    x = 907,888,421.16/38,908.92
  6. Step 6: Final answer
    x = 23,333.68

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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.