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Finding the Fourth Proportional to 45,425.70, 68,138.55 and 35,573.40

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Solution

The fourth proportional to 45,425.70, 68,138.55 and 35,573.40 is: 53,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,425.70 : 68,138.55 = 35,573.40 : x
  2. Step 2: Convert to fraction form
    45,425.70/68,138.55 = 35,573.40/x
  3. Step 3: Cross multiply
    45,425.70x = 68,138.55 × 35,573.40
  4. Step 4: Simplify right side
    45,425.70x = 2,423,919,894.57
  5. Step 5: Solve for x
    x = 2,423,919,894.57/45,425.70
  6. Step 6: Final answer
    x = 53,360.10

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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.