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Finding the Fourth Proportional to 8,282.68, 12,430.50 and 4,999.48

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Solution

The fourth proportional to 8,282.68, 12,430.50 and 4,999.48 is: 7,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,282.68 : 12,430.50 = 4,999.48 : x
  2. Step 2: Convert to fraction form
    8,282.68/12,430.50 = 4,999.48/x
  3. Step 3: Cross multiply
    8,282.68x = 12,430.50 × 4,999.48
  4. Step 4: Simplify right side
    8,282.68x = 62,146,036.14
  5. Step 5: Solve for x
    x = 62,146,036.14/8,282.68
  6. Step 6: Final answer
    x = 7,503.13

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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.