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Finding the Fourth Proportional to 22,298.76, 30,772.04 and 12,867.12

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Solution

The fourth proportional to 22,298.76, 30,772.04 and 12,867.12 is: 17,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,298.76 : 30,772.04 = 12,867.12 : x
  2. Step 2: Convert to fraction form
    22,298.76/30,772.04 = 12,867.12/x
  3. Step 3: Cross multiply
    22,298.76x = 30,772.04 × 12,867.12
  4. Step 4: Simplify right side
    22,298.76x = 395,947,466.99
  5. Step 5: Solve for x
    x = 395,947,466.99/22,298.76
  6. Step 6: Final answer
    x = 17,756.48

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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.