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Finding the Fourth Proportional to 7,045.87, 9,723.29 and 4,061.69

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Solution

The fourth proportional to 7,045.87, 9,723.29 and 4,061.69 is: 5,605.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.87 : 9,723.29 = 4,061.69 : x
  2. Step 2: Convert to fraction form
    7,045.87/9,723.29 = 4,061.69/x
  3. Step 3: Cross multiply
    7,045.87x = 9,723.29 × 4,061.69
  4. Step 4: Simplify right side
    7,045.87x = 39,492,989.76
  5. Step 5: Solve for x
    x = 39,492,989.76/7,045.87
  6. Step 6: Final answer
    x = 5,605.13

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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.