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Finding the Fourth Proportional to 15,959.20, 23,967.60 and 11,581.60

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Solution

The fourth proportional to 15,959.20, 23,967.60 and 11,581.60 is: 17,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959.20 : 23,967.60 = 11,581.60 : x
  2. Step 2: Convert to fraction form
    15,959.20/23,967.60 = 11,581.60/x
  3. Step 3: Cross multiply
    15,959.20x = 23,967.60 × 11,581.60
  4. Step 4: Simplify right side
    15,959.20x = 277,583,156.16
  5. Step 5: Solve for x
    x = 277,583,156.16/15,959.20
  6. Step 6: Final answer
    x = 17,393.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.