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Finding the Fourth Proportional to 42,053.79, 62,993.19 and 19,884.90

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Solution

The fourth proportional to 42,053.79, 62,993.19 and 19,884.90 is: 29,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,053.79 : 62,993.19 = 19,884.90 : x
  2. Step 2: Convert to fraction form
    42,053.79/62,993.19 = 19,884.90/x
  3. Step 3: Cross multiply
    42,053.79x = 62,993.19 × 19,884.90
  4. Step 4: Simplify right side
    42,053.79x = 1,252,613,283.83
  5. Step 5: Solve for x
    x = 1,252,613,283.83/42,053.79
  6. Step 6: Final answer
    x = 29,785.98

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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.