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Finding the Fourth Proportional to 5,559.93, 7,670.13 and 3,200.70

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Solution

The fourth proportional to 5,559.93, 7,670.13 and 3,200.70 is: 4,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,559.93 : 7,670.13 = 3,200.70 : x
  2. Step 2: Convert to fraction form
    5,559.93/7,670.13 = 3,200.70/x
  3. Step 3: Cross multiply
    5,559.93x = 7,670.13 × 3,200.70
  4. Step 4: Simplify right side
    5,559.93x = 24,549,801.85
  5. Step 5: Solve for x
    x = 24,549,801.85/5,559.93
  6. Step 6: Final answer
    x = 4,415.49

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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.