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Finding the Fourth Proportional to 10,886.60, 16,332.60 and 3,095.40

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Solution

The fourth proportional to 10,886.60, 16,332.60 and 3,095.40 is: 4,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.60 : 16,332.60 = 3,095.40 : x
  2. Step 2: Convert to fraction form
    10,886.60/16,332.60 = 3,095.40/x
  3. Step 3: Cross multiply
    10,886.60x = 16,332.60 × 3,095.40
  4. Step 4: Simplify right side
    10,886.60x = 50,555,930.04
  5. Step 5: Solve for x
    x = 50,555,930.04/10,886.60
  6. Step 6: Final answer
    x = 4,643.87

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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.