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Finding the Fourth Proportional to 5,720.98, 7,897.36 and 3,483.66

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Solution

The fourth proportional to 5,720.98, 7,897.36 and 3,483.66 is: 4,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.98 : 7,897.36 = 3,483.66 : x
  2. Step 2: Convert to fraction form
    5,720.98/7,897.36 = 3,483.66/x
  3. Step 3: Cross multiply
    5,720.98x = 7,897.36 × 3,483.66
  4. Step 4: Simplify right side
    5,720.98x = 27,511,717.14
  5. Step 5: Solve for x
    x = 27,511,717.14/5,720.98
  6. Step 6: Final answer
    x = 4,808.92

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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.