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Finding the Fourth Proportional to 43,283.70, 64,925.55 and 40,211.70

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Solution

The fourth proportional to 43,283.70, 64,925.55 and 40,211.70 is: 60,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,283.70 : 64,925.55 = 40,211.70 : x
  2. Step 2: Convert to fraction form
    43,283.70/64,925.55 = 40,211.70/x
  3. Step 3: Cross multiply
    43,283.70x = 64,925.55 × 40,211.70
  4. Step 4: Simplify right side
    43,283.70x = 2,610,766,738.94
  5. Step 5: Solve for x
    x = 2,610,766,738.94/43,283.70
  6. Step 6: Final answer
    x = 60,317.55

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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.