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Finding the Fourth Proportional to 45,853.70, 68,780.55 and 35,485.70

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Solution

The fourth proportional to 45,853.70, 68,780.55 and 35,485.70 is: 53,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,853.70 : 68,780.55 = 35,485.70 : x
  2. Step 2: Convert to fraction form
    45,853.70/68,780.55 = 35,485.70/x
  3. Step 3: Cross multiply
    45,853.70x = 68,780.55 × 35,485.70
  4. Step 4: Simplify right side
    45,853.70x = 2,440,725,963.14
  5. Step 5: Solve for x
    x = 2,440,725,963.14/45,853.70
  6. Step 6: Final answer
    x = 53,228.55

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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.