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Finding the Fourth Proportional to 6,483.84, 9,707.40 and 5,039.88

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Solution

The fourth proportional to 6,483.84, 9,707.40 and 5,039.88 is: 7,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,483.84 : 9,707.40 = 5,039.88 : x
  2. Step 2: Convert to fraction form
    6,483.84/9,707.40 = 5,039.88/x
  3. Step 3: Cross multiply
    6,483.84x = 9,707.40 × 5,039.88
  4. Step 4: Simplify right side
    6,483.84x = 48,924,131.11
  5. Step 5: Solve for x
    x = 48,924,131.11/6,483.84
  6. Step 6: Final answer
    x = 7,545.55

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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.