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Finding the Fourth Proportional to 10,646.76, 15,976.08 and 4,411.38

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Solution

The fourth proportional to 10,646.76, 15,976.08 and 4,411.38 is: 6,619.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,646.76 : 15,976.08 = 4,411.38 : x
  2. Step 2: Convert to fraction form
    10,646.76/15,976.08 = 4,411.38/x
  3. Step 3: Cross multiply
    10,646.76x = 15,976.08 × 4,411.38
  4. Step 4: Simplify right side
    10,646.76x = 70,476,559.79
  5. Step 5: Solve for x
    x = 70,476,559.79/10,646.76
  6. Step 6: Final answer
    x = 6,619.53

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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.