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Finding the Fourth Proportional to 15,955.24, 22,017.90 and 8,881.24

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Solution

The fourth proportional to 15,955.24, 22,017.90 and 8,881.24 is: 12,255.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.24 : 22,017.90 = 8,881.24 : x
  2. Step 2: Convert to fraction form
    15,955.24/22,017.90 = 8,881.24/x
  3. Step 3: Cross multiply
    15,955.24x = 22,017.90 × 8,881.24
  4. Step 4: Simplify right side
    15,955.24x = 195,546,254.20
  5. Step 5: Solve for x
    x = 195,546,254.20/15,955.24
  6. Step 6: Final answer
    x = 12,255.93

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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.