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Finding the Fourth Proportional to 7,859.67, 11,773.92 and 4,740.51

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Solution

The fourth proportional to 7,859.67, 11,773.92 and 4,740.51 is: 7,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.67 : 11,773.92 = 4,740.51 : x
  2. Step 2: Convert to fraction form
    7,859.67/11,773.92 = 4,740.51/x
  3. Step 3: Cross multiply
    7,859.67x = 11,773.92 × 4,740.51
  4. Step 4: Simplify right side
    7,859.67x = 55,814,385.50
  5. Step 5: Solve for x
    x = 55,814,385.50/7,859.67
  6. Step 6: Final answer
    x = 7,101.37

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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.