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Finding the Fourth Proportional to 9,263.47, 13,897.81 and 3,720.71

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Solution

The fourth proportional to 9,263.47, 13,897.81 and 3,720.71 is: 5,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,263.47 : 13,897.81 = 3,720.71 : x
  2. Step 2: Convert to fraction form
    9,263.47/13,897.81 = 3,720.71/x
  3. Step 3: Cross multiply
    9,263.47x = 13,897.81 × 3,720.71
  4. Step 4: Simplify right side
    9,263.47x = 51,709,720.65
  5. Step 5: Solve for x
    x = 51,709,720.65/9,263.47
  6. Step 6: Final answer
    x = 5,582.11

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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.