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Finding the Fourth Proportional to 15,353.50, 23,018.01 and 7,959.10

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Solution

The fourth proportional to 15,353.50, 23,018.01 and 7,959.10 is: 11,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,353.50 : 23,018.01 = 7,959.10 : x
  2. Step 2: Convert to fraction form
    15,353.50/23,018.01 = 7,959.10/x
  3. Step 3: Cross multiply
    15,353.50x = 23,018.01 × 7,959.10
  4. Step 4: Simplify right side
    15,353.50x = 183,202,643.39
  5. Step 5: Solve for x
    x = 183,202,643.39/15,353.50
  6. Step 6: Final answer
    x = 11,932.30

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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.