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Finding the Fourth Proportional to 4,959.90, 7,398.07 and 4,615.45

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Solution

The fourth proportional to 4,959.90, 7,398.07 and 4,615.45 is: 6,884.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.90 : 7,398.07 = 4,615.45 : x
  2. Step 2: Convert to fraction form
    4,959.90/7,398.07 = 4,615.45/x
  3. Step 3: Cross multiply
    4,959.90x = 7,398.07 × 4,615.45
  4. Step 4: Simplify right side
    4,959.90x = 34,145,392.15
  5. Step 5: Solve for x
    x = 34,145,392.15/4,959.90
  6. Step 6: Final answer
    x = 6,884.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.