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Finding the Fourth Proportional to 7,105.73, 9,801.81 and 4,866.89

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Solution

The fourth proportional to 7,105.73, 9,801.81 and 4,866.89 is: 6,713.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.73 : 9,801.81 = 4,866.89 : x
  2. Step 2: Convert to fraction form
    7,105.73/9,801.81 = 4,866.89/x
  3. Step 3: Cross multiply
    7,105.73x = 9,801.81 × 4,866.89
  4. Step 4: Simplify right side
    7,105.73x = 47,704,282.06
  5. Step 5: Solve for x
    x = 47,704,282.06/7,105.73
  6. Step 6: Final answer
    x = 6,713.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.