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Finding the Fourth Proportional to 69,076.60, 103,479.32 and 35,818.40

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Solution

The fourth proportional to 69,076.60, 103,479.32 and 35,818.40 is: 53,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,076.60 : 103,479.32 = 35,818.40 : x
  2. Step 2: Convert to fraction form
    69,076.60/103,479.32 = 35,818.40/x
  3. Step 3: Cross multiply
    69,076.60x = 103,479.32 × 35,818.40
  4. Step 4: Simplify right side
    69,076.60x = 3,706,464,023.73
  5. Step 5: Solve for x
    x = 3,706,464,023.73/69,076.60
  6. Step 6: Final answer
    x = 53,657.30

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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.