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Finding the Fourth Proportional to 50,640.59, 69,845.19 and 30,476.45

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Solution

The fourth proportional to 50,640.59, 69,845.19 and 30,476.45 is: 42,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,640.59 : 69,845.19 = 30,476.45 : x
  2. Step 2: Convert to fraction form
    50,640.59/69,845.19 = 30,476.45/x
  3. Step 3: Cross multiply
    50,640.59x = 69,845.19 × 30,476.45
  4. Step 4: Simplify right side
    50,640.59x = 2,128,633,501.10
  5. Step 5: Solve for x
    x = 2,128,633,501.10/50,640.59
  6. Step 6: Final answer
    x = 42,034.13

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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.