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Finding the Fourth Proportional to 5,094.80, 7,642.20 and 4,851.80

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Solution

The fourth proportional to 5,094.80, 7,642.20 and 4,851.80 is: 7,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,094.80 : 7,642.20 = 4,851.80 : x
  2. Step 2: Convert to fraction form
    5,094.80/7,642.20 = 4,851.80/x
  3. Step 3: Cross multiply
    5,094.80x = 7,642.20 × 4,851.80
  4. Step 4: Simplify right side
    5,094.80x = 37,078,425.96
  5. Step 5: Solve for x
    x = 37,078,425.96/5,094.80
  6. Step 6: Final answer
    x = 7,277.70

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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.