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Finding the Fourth Proportional to 7,897.80, 10,895.04 and 5,241.81

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Solution

The fourth proportional to 7,897.80, 10,895.04 and 5,241.81 is: 7,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.80 : 10,895.04 = 5,241.81 : x
  2. Step 2: Convert to fraction form
    7,897.80/10,895.04 = 5,241.81/x
  3. Step 3: Cross multiply
    7,897.80x = 10,895.04 × 5,241.81
  4. Step 4: Simplify right side
    7,897.80x = 57,109,729.62
  5. Step 5: Solve for x
    x = 57,109,729.62/7,897.80
  6. Step 6: Final answer
    x = 7,231.09

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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.