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Finding the Fourth Proportional to 12,497.81, 17,247.19 and 7,462.47

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Solution

The fourth proportional to 12,497.81, 17,247.19 and 7,462.47 is: 10,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.81 : 17,247.19 = 7,462.47 : x
  2. Step 2: Convert to fraction form
    12,497.81/17,247.19 = 7,462.47/x
  3. Step 3: Cross multiply
    12,497.81x = 17,247.19 × 7,462.47
  4. Step 4: Simplify right side
    12,497.81x = 128,706,697.97
  5. Step 5: Solve for x
    x = 128,706,697.97/12,497.81
  6. Step 6: Final answer
    x = 10,298.34

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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.