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Finding the Fourth Proportional to 15,459.22, 23,168.96 and 7,019.56

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Solution

The fourth proportional to 15,459.22, 23,168.96 and 7,019.56 is: 10,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.22 : 23,168.96 = 7,019.56 : x
  2. Step 2: Convert to fraction form
    15,459.22/23,168.96 = 7,019.56/x
  3. Step 3: Cross multiply
    15,459.22x = 23,168.96 × 7,019.56
  4. Step 4: Simplify right side
    15,459.22x = 162,635,904.86
  5. Step 5: Solve for x
    x = 162,635,904.86/15,459.22
  6. Step 6: Final answer
    x = 10,520.32

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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.