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Finding the Fourth Proportional to 8,330.78, 11,497.80 and 4,793.30

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Solution

The fourth proportional to 8,330.78, 11,497.80 and 4,793.30 is: 6,615.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.78 : 11,497.80 = 4,793.30 : x
  2. Step 2: Convert to fraction form
    8,330.78/11,497.80 = 4,793.30/x
  3. Step 3: Cross multiply
    8,330.78x = 11,497.80 × 4,793.30
  4. Step 4: Simplify right side
    8,330.78x = 55,112,404.74
  5. Step 5: Solve for x
    x = 55,112,404.74/8,330.78
  6. Step 6: Final answer
    x = 6,615.52

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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.