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Finding the Fourth Proportional to 35,463.91, 48,939.61 and 19,331.40

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Solution

The fourth proportional to 35,463.91, 48,939.61 and 19,331.40 is: 26,677.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,463.91 : 48,939.61 = 19,331.40 : x
  2. Step 2: Convert to fraction form
    35,463.91/48,939.61 = 19,331.40/x
  3. Step 3: Cross multiply
    35,463.91x = 48,939.61 × 19,331.40
  4. Step 4: Simplify right side
    35,463.91x = 946,071,176.75
  5. Step 5: Solve for x
    x = 946,071,176.75/35,463.91
  6. Step 6: Final answer
    x = 26,677.01

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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.