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Finding the Fourth Proportional to 3,042.96, 4,561.53 and 961.53

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Solution

The fourth proportional to 3,042.96, 4,561.53 and 961.53 is: 1,441.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.96 : 4,561.53 = 961.53 : x
  2. Step 2: Convert to fraction form
    3,042.96/4,561.53 = 961.53/x
  3. Step 3: Cross multiply
    3,042.96x = 4,561.53 × 961.53
  4. Step 4: Simplify right side
    3,042.96x = 4,386,047.94
  5. Step 5: Solve for x
    x = 4,386,047.94/3,042.96
  6. Step 6: Final answer
    x = 1,441.38

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1.5x scale

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.