Home / 51,905.18-71,629.14-28,031.85

Finding the Fourth Proportional to 51,905.18, 71,629.14 and 28,031.85

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Solution

The fourth proportional to 51,905.18, 71,629.14 and 28,031.85 is: 38,683.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,905.18 : 71,629.14 = 28,031.85 : x
  2. Step 2: Convert to fraction form
    51,905.18/71,629.14 = 28,031.85/x
  3. Step 3: Cross multiply
    51,905.18x = 71,629.14 × 28,031.85
  4. Step 4: Simplify right side
    51,905.18x = 2,007,897,308.11
  5. Step 5: Solve for x
    x = 2,007,897,308.11/51,905.18
  6. Step 6: Final answer
    x = 38,683.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.