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Finding the Fourth Proportional to 11,959.76, 17,927.60 and 4,562.40

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Solution

The fourth proportional to 11,959.76, 17,927.60 and 4,562.40 is: 6,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,959.76 : 17,927.60 = 4,562.40 : x
  2. Step 2: Convert to fraction form
    11,959.76/17,927.60 = 4,562.40/x
  3. Step 3: Cross multiply
    11,959.76x = 17,927.60 × 4,562.40
  4. Step 4: Simplify right side
    11,959.76x = 81,792,882.24
  5. Step 5: Solve for x
    x = 81,792,882.24/11,959.76
  6. Step 6: Final answer
    x = 6,839.01

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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.