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Finding the Fourth Proportional to 42,460.80, 63,698.90 and 34,632.71

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Solution

The fourth proportional to 42,460.80, 63,698.90 and 34,632.71 is: 51,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,460.80 : 63,698.90 = 34,632.71 : x
  2. Step 2: Convert to fraction form
    42,460.80/63,698.90 = 34,632.71/x
  3. Step 3: Cross multiply
    42,460.80x = 63,698.90 × 34,632.71
  4. Step 4: Simplify right side
    42,460.80x = 2,206,065,039.36
  5. Step 5: Solve for x
    x = 2,206,065,039.36/42,460.80
  6. Step 6: Final answer
    x = 51,955.33

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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.