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Finding the Fourth Proportional to 5,603.10, 8,404.65 and 5,180.70

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Solution

The fourth proportional to 5,603.10, 8,404.65 and 5,180.70 is: 7,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.10 : 8,404.65 = 5,180.70 : x
  2. Step 2: Convert to fraction form
    5,603.10/8,404.65 = 5,180.70/x
  3. Step 3: Cross multiply
    5,603.10x = 8,404.65 × 5,180.70
  4. Step 4: Simplify right side
    5,603.10x = 43,541,970.26
  5. Step 5: Solve for x
    x = 43,541,970.26/5,603.10
  6. Step 6: Final answer
    x = 7,771.05

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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.