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Finding the Fourth Proportional to 45,066.96, 67,583.16 and 15,479.28

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Solution

The fourth proportional to 45,066.96, 67,583.16 and 15,479.28 is: 23,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,066.96 : 67,583.16 = 15,479.28 : x
  2. Step 2: Convert to fraction form
    45,066.96/67,583.16 = 15,479.28/x
  3. Step 3: Cross multiply
    45,066.96x = 67,583.16 × 15,479.28
  4. Step 4: Simplify right side
    45,066.96x = 1,046,138,656.92
  5. Step 5: Solve for x
    x = 1,046,138,656.92/45,066.96
  6. Step 6: Final answer
    x = 23,212.98

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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.