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Finding the Fourth Proportional to 4,671.15, 7,009.17 and 1,899.87

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Solution

The fourth proportional to 4,671.15, 7,009.17 and 1,899.87 is: 2,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671.15 : 7,009.17 = 1,899.87 : x
  2. Step 2: Convert to fraction form
    4,671.15/7,009.17 = 1,899.87/x
  3. Step 3: Cross multiply
    4,671.15x = 7,009.17 × 1,899.87
  4. Step 4: Simplify right side
    4,671.15x = 13,316,502.31
  5. Step 5: Solve for x
    x = 13,316,502.31/4,671.15
  6. Step 6: Final answer
    x = 2,850.80

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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.