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Finding the Fourth Proportional to 29,649.59, 40,918.25 and 17,078.39

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Solution

The fourth proportional to 29,649.59, 40,918.25 and 17,078.39 is: 23,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,649.59 : 40,918.25 = 17,078.39 : x
  2. Step 2: Convert to fraction form
    29,649.59/40,918.25 = 17,078.39/x
  3. Step 3: Cross multiply
    29,649.59x = 40,918.25 × 17,078.39
  4. Step 4: Simplify right side
    29,649.59x = 698,817,727.10
  5. Step 5: Solve for x
    x = 698,817,727.10/29,649.59
  6. Step 6: Final answer
    x = 23,569.22

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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.