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Finding the Fourth Proportional to 8,332.90, 12,493.16 and 5,045.20

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Solution

The fourth proportional to 8,332.90, 12,493.16 and 5,045.20 is: 7,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,332.90 : 12,493.16 = 5,045.20 : x
  2. Step 2: Convert to fraction form
    8,332.90/12,493.16 = 5,045.20/x
  3. Step 3: Cross multiply
    8,332.90x = 12,493.16 × 5,045.20
  4. Step 4: Simplify right side
    8,332.90x = 63,030,403.14
  5. Step 5: Solve for x
    x = 63,030,403.14/8,332.90
  6. Step 6: Final answer
    x = 7,564.05

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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.