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Finding the Fourth Proportional to 7,755.85, 11,623.30 and 5,559.74

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Solution

The fourth proportional to 7,755.85, 11,623.30 and 5,559.74 is: 8,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,755.85 : 11,623.30 = 5,559.74 : x
  2. Step 2: Convert to fraction form
    7,755.85/11,623.30 = 5,559.74/x
  3. Step 3: Cross multiply
    7,755.85x = 11,623.30 × 5,559.74
  4. Step 4: Simplify right side
    7,755.85x = 64,622,497.51
  5. Step 5: Solve for x
    x = 64,622,497.51/7,755.85
  6. Step 6: Final answer
    x = 8,332.10

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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.