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Finding the Fourth Proportional to 15,955.70, 22,019.57 and 8,882.57

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Solution

The fourth proportional to 15,955.70, 22,019.57 and 8,882.57 is: 12,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.70 : 22,019.57 = 8,882.57 : x
  2. Step 2: Convert to fraction form
    15,955.70/22,019.57 = 8,882.57/x
  3. Step 3: Cross multiply
    15,955.70x = 22,019.57 × 8,882.57
  4. Step 4: Simplify right side
    15,955.70x = 195,590,217.38
  5. Step 5: Solve for x
    x = 195,590,217.38/15,955.70
  6. Step 6: Final answer
    x = 12,258.33

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Double scale
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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.