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Finding the Fourth Proportional to 3,165.08, 4,746.98 and 856.04

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Solution

The fourth proportional to 3,165.08, 4,746.98 and 856.04 is: 1,283.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.08 : 4,746.98 = 856.04 : x
  2. Step 2: Convert to fraction form
    3,165.08/4,746.98 = 856.04/x
  3. Step 3: Cross multiply
    3,165.08x = 4,746.98 × 856.04
  4. Step 4: Simplify right side
    3,165.08x = 4,063,604.76
  5. Step 5: Solve for x
    x = 4,063,604.76/3,165.08
  6. Step 6: Final answer
    x = 1,283.89

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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.