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Finding the Fourth Proportional to 29,212, 40,312.56 and 16,637.92

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Solution

The fourth proportional to 29,212, 40,312.56 and 16,637.92 is: 22,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,212 : 40,312.56 = 16,637.92 : x
  2. Step 2: Convert to fraction form
    29,212/40,312.56 = 16,637.92/x
  3. Step 3: Cross multiply
    29,212x = 40,312.56 × 16,637.92
  4. Step 4: Simplify right side
    29,212x = 670,717,148.28
  5. Step 5: Solve for x
    x = 670,717,148.28/29,212
  6. Step 6: Final answer
    x = 22,960.33

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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.