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Finding the Fourth Proportional to 8,348.69, 12,503.16 and 4,831.29

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Solution

The fourth proportional to 8,348.69, 12,503.16 and 4,831.29 is: 7,235.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.69 : 12,503.16 = 4,831.29 : x
  2. Step 2: Convert to fraction form
    8,348.69/12,503.16 = 4,831.29/x
  3. Step 3: Cross multiply
    8,348.69x = 12,503.16 × 4,831.29
  4. Step 4: Simplify right side
    8,348.69x = 60,406,329.36
  5. Step 5: Solve for x
    x = 60,406,329.36/8,348.69
  6. Step 6: Final answer
    x = 7,235.43

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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.