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Finding the Fourth Proportional to 70,018.94, 105,042.08 and 22,645.80

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Solution

The fourth proportional to 70,018.94, 105,042.08 and 22,645.80 is: 33,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,018.94 : 105,042.08 = 22,645.80 : x
  2. Step 2: Convert to fraction form
    70,018.94/105,042.08 = 22,645.80/x
  3. Step 3: Cross multiply
    70,018.94x = 105,042.08 × 22,645.80
  4. Step 4: Simplify right side
    70,018.94x = 2,378,761,935.26
  5. Step 5: Solve for x
    x = 2,378,761,935.26/70,018.94
  6. Step 6: Final answer
    x = 33,973.12

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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.