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Finding the Fourth Proportional to 7,327, 10,114.50 and 4,812.76

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Solution

The fourth proportional to 7,327, 10,114.50 and 4,812.76 is: 6,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327 : 10,114.50 = 4,812.76 : x
  2. Step 2: Convert to fraction form
    7,327/10,114.50 = 4,812.76/x
  3. Step 3: Cross multiply
    7,327x = 10,114.50 × 4,812.76
  4. Step 4: Simplify right side
    7,327x = 48,678,661.02
  5. Step 5: Solve for x
    x = 48,678,661.02/7,327
  6. Step 6: Final answer
    x = 6,643.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.