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Finding the Fourth Proportional to 5,308.98, 7,962.44 and 5,045.57

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Solution

The fourth proportional to 5,308.98, 7,962.44 and 5,045.57 is: 7,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.98 : 7,962.44 = 5,045.57 : x
  2. Step 2: Convert to fraction form
    5,308.98/7,962.44 = 5,045.57/x
  3. Step 3: Cross multiply
    5,308.98x = 7,962.44 × 5,045.57
  4. Step 4: Simplify right side
    5,308.98x = 40,175,008.58
  5. Step 5: Solve for x
    x = 40,175,008.58/5,308.98
  6. Step 6: Final answer
    x = 7,567.37

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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.