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Finding the Fourth Proportional to 39,229.76, 58,829.02 and 14,256.24

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Solution

The fourth proportional to 39,229.76, 58,829.02 and 14,256.24 is: 21,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.76 : 58,829.02 = 14,256.24 : x
  2. Step 2: Convert to fraction form
    39,229.76/58,829.02 = 14,256.24/x
  3. Step 3: Cross multiply
    39,229.76x = 58,829.02 × 14,256.24
  4. Step 4: Simplify right side
    39,229.76x = 838,680,628.08
  5. Step 5: Solve for x
    x = 838,680,628.08/39,229.76
  6. Step 6: Final answer
    x = 21,378.68

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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.