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Finding the Fourth Proportional to 12,339.68, 17,028.24 and 7,035.36

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Solution

The fourth proportional to 12,339.68, 17,028.24 and 7,035.36 is: 9,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.68 : 17,028.24 = 7,035.36 : x
  2. Step 2: Convert to fraction form
    12,339.68/17,028.24 = 7,035.36/x
  3. Step 3: Cross multiply
    12,339.68x = 17,028.24 × 7,035.36
  4. Step 4: Simplify right side
    12,339.68x = 119,799,798.57
  5. Step 5: Solve for x
    x = 119,799,798.57/12,339.68
  6. Step 6: Final answer
    x = 9,708.50

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1.5x scale

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.