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Finding the Fourth Proportional to 31,693.88, 47,512.62 and 15,043.64

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Solution

The fourth proportional to 31,693.88, 47,512.62 and 15,043.64 is: 22,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,693.88 : 47,512.62 = 15,043.64 : x
  2. Step 2: Convert to fraction form
    31,693.88/47,512.62 = 15,043.64/x
  3. Step 3: Cross multiply
    31,693.88x = 47,512.62 × 15,043.64
  4. Step 4: Simplify right side
    31,693.88x = 714,762,750.74
  5. Step 5: Solve for x
    x = 714,762,750.74/31,693.88
  6. Step 6: Final answer
    x = 22,552.07

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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.