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Finding the Fourth Proportional to 76,013.84, 104,899.26 and 42,479.84

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Solution

The fourth proportional to 76,013.84, 104,899.26 and 42,479.84 is: 58,622.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,013.84 : 104,899.26 = 42,479.84 : x
  2. Step 2: Convert to fraction form
    76,013.84/104,899.26 = 42,479.84/x
  3. Step 3: Cross multiply
    76,013.84x = 104,899.26 × 42,479.84
  4. Step 4: Simplify right side
    76,013.84x = 4,456,103,780.92
  5. Step 5: Solve for x
    x = 4,456,103,780.92/76,013.84
  6. Step 6: Final answer
    x = 58,622.27

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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.