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Finding the Fourth Proportional to 3,045.96, 4,569.22 and 854.72

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Solution

The fourth proportional to 3,045.96, 4,569.22 and 854.72 is: 1,282.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.96 : 4,569.22 = 854.72 : x
  2. Step 2: Convert to fraction form
    3,045.96/4,569.22 = 854.72/x
  3. Step 3: Cross multiply
    3,045.96x = 4,569.22 × 854.72
  4. Step 4: Simplify right side
    3,045.96x = 3,905,403.72
  5. Step 5: Solve for x
    x = 3,905,403.72/3,045.96
  6. Step 6: Final answer
    x = 1,282.16

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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.