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Finding the Fourth Proportional to 10,365.39, 15,544.04 and 4,518

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Solution

The fourth proportional to 10,365.39, 15,544.04 and 4,518 is: 6,775.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,365.39 : 15,544.04 = 4,518 : x
  2. Step 2: Convert to fraction form
    10,365.39/15,544.04 = 4,518/x
  3. Step 3: Cross multiply
    10,365.39x = 15,544.04 × 4,518
  4. Step 4: Simplify right side
    10,365.39x = 70,227,950.13
  5. Step 5: Solve for x
    x = 70,227,950.13/10,365.39
  6. Step 6: Final answer
    x = 6,775.23

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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.