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Finding the Fourth Proportional to 8,910.61, 13,362.14 and 2,671.51

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Solution

The fourth proportional to 8,910.61, 13,362.14 and 2,671.51 is: 4,006.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.61 : 13,362.14 = 2,671.51 : x
  2. Step 2: Convert to fraction form
    8,910.61/13,362.14 = 2,671.51/x
  3. Step 3: Cross multiply
    8,910.61x = 13,362.14 × 2,671.51
  4. Step 4: Simplify right side
    8,910.61x = 35,697,090.63
  5. Step 5: Solve for x
    x = 35,697,090.63/8,910.61
  6. Step 6: Final answer
    x = 4,006.13

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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.