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Finding the Fourth Proportional to 5,292.55, 7,938.83 and 4,891.60

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Solution

The fourth proportional to 5,292.55, 7,938.83 and 4,891.60 is: 7,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.55 : 7,938.83 = 4,891.60 : x
  2. Step 2: Convert to fraction form
    5,292.55/7,938.83 = 4,891.60/x
  3. Step 3: Cross multiply
    5,292.55x = 7,938.83 × 4,891.60
  4. Step 4: Simplify right side
    5,292.55x = 38,833,556.37
  5. Step 5: Solve for x
    x = 38,833,556.37/5,292.55
  6. Step 6: Final answer
    x = 7,337.40

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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.