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Finding the Fourth Proportional to 50,871.68, 70,205.68 and 29,649.68

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Solution

The fourth proportional to 50,871.68, 70,205.68 and 29,649.68 is: 40,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,871.68 : 70,205.68 = 29,649.68 : x
  2. Step 2: Convert to fraction form
    50,871.68/70,205.68 = 29,649.68/x
  3. Step 3: Cross multiply
    50,871.68x = 70,205.68 × 29,649.68
  4. Step 4: Simplify right side
    50,871.68x = 2,081,575,946.18
  5. Step 5: Solve for x
    x = 2,081,575,946.18/50,871.68
  6. Step 6: Final answer
    x = 40,918.17

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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.