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Finding the Fourth Proportional to 7,755.65, 11,633.48 and 5,787.35

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Solution

The fourth proportional to 7,755.65, 11,633.48 and 5,787.35 is: 8,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.65 : 11,633.48 = 5,787.35 : x
  2. Step 2: Convert to fraction form
    7,755.65/11,633.48 = 5,787.35/x
  3. Step 3: Cross multiply
    7,755.65x = 11,633.48 × 5,787.35
  4. Step 4: Simplify right side
    7,755.65x = 67,326,991.54
  5. Step 5: Solve for x
    x = 67,326,991.54/7,755.65
  6. Step 6: Final answer
    x = 8,681.03

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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.