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Finding the Fourth Proportional to 8,750.52, 13,127.76 and 2,907.36

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Solution

The fourth proportional to 8,750.52, 13,127.76 and 2,907.36 is: 4,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.52 : 13,127.76 = 2,907.36 : x
  2. Step 2: Convert to fraction form
    8,750.52/13,127.76 = 2,907.36/x
  3. Step 3: Cross multiply
    8,750.52x = 13,127.76 × 2,907.36
  4. Step 4: Simplify right side
    8,750.52x = 38,167,124.31
  5. Step 5: Solve for x
    x = 38,167,124.31/8,750.52
  6. Step 6: Final answer
    x = 4,361.70

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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.