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Finding the Fourth Proportional to 12,340.15, 17,029.54 and 7,493.47

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Solution

The fourth proportional to 12,340.15, 17,029.54 and 7,493.47 is: 10,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.15 : 17,029.54 = 7,493.47 : x
  2. Step 2: Convert to fraction form
    12,340.15/17,029.54 = 7,493.47/x
  3. Step 3: Cross multiply
    12,340.15x = 17,029.54 × 7,493.47
  4. Step 4: Simplify right side
    12,340.15x = 127,610,347.10
  5. Step 5: Solve for x
    x = 127,610,347.10/12,340.15
  6. Step 6: Final answer
    x = 10,341.07

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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.