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Finding the Fourth Proportional to 4,671.18, 7,005.78 and 1,749.69

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Solution

The fourth proportional to 4,671.18, 7,005.78 and 1,749.69 is: 2,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.18 : 7,005.78 = 1,749.69 : x
  2. Step 2: Convert to fraction form
    4,671.18/7,005.78 = 1,749.69/x
  3. Step 3: Cross multiply
    4,671.18x = 7,005.78 × 1,749.69
  4. Step 4: Simplify right side
    4,671.18x = 12,257,943.21
  5. Step 5: Solve for x
    x = 12,257,943.21/4,671.18
  6. Step 6: Final answer
    x = 2,624.16

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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.