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Finding the Fourth Proportional to 10,925.52, 15,068.38 and 7,339.39

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Solution

The fourth proportional to 10,925.52, 15,068.38 and 7,339.39 is: 10,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,925.52 : 15,068.38 = 7,339.39 : x
  2. Step 2: Convert to fraction form
    10,925.52/15,068.38 = 7,339.39/x
  3. Step 3: Cross multiply
    10,925.52x = 15,068.38 × 7,339.39
  4. Step 4: Simplify right side
    10,925.52x = 110,592,717.49
  5. Step 5: Solve for x
    x = 110,592,717.49/10,925.52
  6. Step 6: Final answer
    x = 10,122.42

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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.