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Finding the Fourth Proportional to 4,997.90, 7,488.05 and 4,454.93

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Solution

The fourth proportional to 4,997.90, 7,488.05 and 4,454.93 is: 6,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,997.90 : 7,488.05 = 4,454.93 : x
  2. Step 2: Convert to fraction form
    4,997.90/7,488.05 = 4,454.93/x
  3. Step 3: Cross multiply
    4,997.90x = 7,488.05 × 4,454.93
  4. Step 4: Simplify right side
    4,997.90x = 33,358,735.03
  5. Step 5: Solve for x
    x = 33,358,735.03/4,997.90
  6. Step 6: Final answer
    x = 6,674.55

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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.