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Finding the Fourth Proportional to 8,673.71, 13,006.50 and 3,126.32

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Solution

The fourth proportional to 8,673.71, 13,006.50 and 3,126.32 is: 4,688.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.71 : 13,006.50 = 3,126.32 : x
  2. Step 2: Convert to fraction form
    8,673.71/13,006.50 = 3,126.32/x
  3. Step 3: Cross multiply
    8,673.71x = 13,006.50 × 3,126.32
  4. Step 4: Simplify right side
    8,673.71x = 40,662,448.56
  5. Step 5: Solve for x
    x = 40,662,448.56/8,673.71
  6. Step 6: Final answer
    x = 4,688.01

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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.