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Finding the Fourth Proportional to 51,065.52, 70,470.44 and 28,709.52

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Solution

The fourth proportional to 51,065.52, 70,470.44 and 28,709.52 is: 39,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,065.52 : 70,470.44 = 28,709.52 : x
  2. Step 2: Convert to fraction form
    51,065.52/70,470.44 = 28,709.52/x
  3. Step 3: Cross multiply
    51,065.52x = 70,470.44 × 28,709.52
  4. Step 4: Simplify right side
    51,065.52x = 2,023,172,506.59
  5. Step 5: Solve for x
    x = 2,023,172,506.59/51,065.52
  6. Step 6: Final answer
    x = 39,619.15

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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.