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Finding the Fourth Proportional to 4,390.68, 6,587.10 and 3,094.68

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Solution

The fourth proportional to 4,390.68, 6,587.10 and 3,094.68 is: 4,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.68 : 6,587.10 = 3,094.68 : x
  2. Step 2: Convert to fraction form
    4,390.68/6,587.10 = 3,094.68/x
  3. Step 3: Cross multiply
    4,390.68x = 6,587.10 × 3,094.68
  4. Step 4: Simplify right side
    4,390.68x = 20,384,966.63
  5. Step 5: Solve for x
    x = 20,384,966.63/4,390.68
  6. Step 6: Final answer
    x = 4,642.78

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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.