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Finding the Fourth Proportional to 15,539.88, 23,289.66 and 7,223.88

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Solution

The fourth proportional to 15,539.88, 23,289.66 and 7,223.88 is: 10,826.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,539.88 : 23,289.66 = 7,223.88 : x
  2. Step 2: Convert to fraction form
    15,539.88/23,289.66 = 7,223.88/x
  3. Step 3: Cross multiply
    15,539.88x = 23,289.66 × 7,223.88
  4. Step 4: Simplify right side
    15,539.88x = 168,241,709.08
  5. Step 5: Solve for x
    x = 168,241,709.08/15,539.88
  6. Step 6: Final answer
    x = 10,826.45

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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.