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Finding the Fourth Proportional to 17,560.81, 26,355.05 and 7,706.89

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Solution

The fourth proportional to 17,560.81, 26,355.05 and 7,706.89 is: 11,566.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,560.81 : 26,355.05 = 7,706.89 : x
  2. Step 2: Convert to fraction form
    17,560.81/26,355.05 = 7,706.89/x
  3. Step 3: Cross multiply
    17,560.81x = 26,355.05 × 7,706.89
  4. Step 4: Simplify right side
    17,560.81x = 203,115,424.67
  5. Step 5: Solve for x
    x = 203,115,424.67/17,560.81
  6. Step 6: Final answer
    x = 11,566.41

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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.