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Finding the Fourth Proportional to 7,365.87, 11,047.77 and 3,854.72

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Solution

The fourth proportional to 7,365.87, 11,047.77 and 3,854.72 is: 5,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365.87 : 11,047.77 = 3,854.72 : x
  2. Step 2: Convert to fraction form
    7,365.87/11,047.77 = 3,854.72/x
  3. Step 3: Cross multiply
    7,365.87x = 11,047.77 × 3,854.72
  4. Step 4: Simplify right side
    7,365.87x = 42,586,108.31
  5. Step 5: Solve for x
    x = 42,586,108.31/7,365.87
  6. Step 6: Final answer
    x = 5,781.54

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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.