Home / 51,518.30-71,096.15-28,857.09

Finding the Fourth Proportional to 51,518.30, 71,096.15 and 28,857.09

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Solution

The fourth proportional to 51,518.30, 71,096.15 and 28,857.09 is: 39,823.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,518.30 : 71,096.15 = 28,857.09 : x
  2. Step 2: Convert to fraction form
    51,518.30/71,096.15 = 28,857.09/x
  3. Step 3: Cross multiply
    51,518.30x = 71,096.15 × 28,857.09
  4. Step 4: Simplify right side
    51,518.30x = 2,051,627,854.92
  5. Step 5: Solve for x
    x = 2,051,627,854.92/51,518.30
  6. Step 6: Final answer
    x = 39,823.29

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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.