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Finding the Fourth Proportional to 12,332.79, 17,019.36 and 6,743.79

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Solution

The fourth proportional to 12,332.79, 17,019.36 and 6,743.79 is: 9,306.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,332.79 : 17,019.36 = 6,743.79 : x
  2. Step 2: Convert to fraction form
    12,332.79/17,019.36 = 6,743.79/x
  3. Step 3: Cross multiply
    12,332.79x = 17,019.36 × 6,743.79
  4. Step 4: Simplify right side
    12,332.79x = 114,774,989.77
  5. Step 5: Solve for x
    x = 114,774,989.77/12,332.79
  6. Step 6: Final answer
    x = 9,306.49

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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.