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Finding the Fourth Proportional to 47,125.63, 70,686.63 and 15,960.88

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Solution

The fourth proportional to 47,125.63, 70,686.63 and 15,960.88 is: 23,940.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,125.63 : 70,686.63 = 15,960.88 : x
  2. Step 2: Convert to fraction form
    47,125.63/70,686.63 = 15,960.88/x
  3. Step 3: Cross multiply
    47,125.63x = 70,686.63 × 15,960.88
  4. Step 4: Simplify right side
    47,125.63x = 1,128,220,819.03
  5. Step 5: Solve for x
    x = 1,128,220,819.03/47,125.63
  6. Step 6: Final answer
    x = 23,940.71

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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.