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Finding the Fourth Proportional to 12,928.95, 17,842.28 and 7,263.27

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Solution

The fourth proportional to 12,928.95, 17,842.28 and 7,263.27 is: 10,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.95 : 17,842.28 = 7,263.27 : x
  2. Step 2: Convert to fraction form
    12,928.95/17,842.28 = 7,263.27/x
  3. Step 3: Cross multiply
    12,928.95x = 17,842.28 × 7,263.27
  4. Step 4: Simplify right side
    12,928.95x = 129,593,260.74
  5. Step 5: Solve for x
    x = 129,593,260.74/12,928.95
  6. Step 6: Final answer
    x = 10,023.49

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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.