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Finding the Fourth Proportional to 3,655.99, 5,487.88 and 2,970.93

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Solution

The fourth proportional to 3,655.99, 5,487.88 and 2,970.93 is: 4,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.99 : 5,487.88 = 2,970.93 : x
  2. Step 2: Convert to fraction form
    3,655.99/5,487.88 = 2,970.93/x
  3. Step 3: Cross multiply
    3,655.99x = 5,487.88 × 2,970.93
  4. Step 4: Simplify right side
    3,655.99x = 16,304,107.33
  5. Step 5: Solve for x
    x = 16,304,107.33/3,655.99
  6. Step 6: Final answer
    x = 4,459.56

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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.