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Finding the Fourth Proportional to 15,319.22, 22,978.84 and 4,225.56

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Solution

The fourth proportional to 15,319.22, 22,978.84 and 4,225.56 is: 6,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.22 : 22,978.84 = 4,225.56 : x
  2. Step 2: Convert to fraction form
    15,319.22/22,978.84 = 4,225.56/x
  3. Step 3: Cross multiply
    15,319.22x = 22,978.84 × 4,225.56
  4. Step 4: Simplify right side
    15,319.22x = 97,098,467.15
  5. Step 5: Solve for x
    x = 97,098,467.15/15,319.22
  6. Step 6: Final answer
    x = 6,338.34

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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.