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Finding the Fourth Proportional to 7,875.52, 10,868.52 and 4,339.24

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Solution

The fourth proportional to 7,875.52, 10,868.52 and 4,339.24 is: 5,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.52 : 10,868.52 = 4,339.24 : x
  2. Step 2: Convert to fraction form
    7,875.52/10,868.52 = 4,339.24/x
  3. Step 3: Cross multiply
    7,875.52x = 10,868.52 × 4,339.24
  4. Step 4: Simplify right side
    7,875.52x = 47,161,116.72
  5. Step 5: Solve for x
    x = 47,161,116.72/7,875.52
  6. Step 6: Final answer
    x = 5,988.32

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