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Finding the Fourth Proportional to 31,701.60, 47,552.40 and 8,009.10

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Solution

The fourth proportional to 31,701.60, 47,552.40 and 8,009.10 is: 12,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,701.60 : 47,552.40 = 8,009.10 : x
  2. Step 2: Convert to fraction form
    31,701.60/47,552.40 = 8,009.10/x
  3. Step 3: Cross multiply
    31,701.60x = 47,552.40 × 8,009.10
  4. Step 4: Simplify right side
    31,701.60x = 380,851,926.84
  5. Step 5: Solve for x
    x = 380,851,926.84/31,701.60
  6. Step 6: Final answer
    x = 12,013.65

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Similar ratio
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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.