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Finding the Fourth Proportional to 29,661.77, 40,929.65 and 17,722.77

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Solution

The fourth proportional to 29,661.77, 40,929.65 and 17,722.77 is: 24,455.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,661.77 : 40,929.65 = 17,722.77 : x
  2. Step 2: Convert to fraction form
    29,661.77/40,929.65 = 17,722.77/x
  3. Step 3: Cross multiply
    29,661.77x = 40,929.65 × 17,722.77
  4. Step 4: Simplify right side
    29,661.77x = 725,386,773.13
  5. Step 5: Solve for x
    x = 725,386,773.13/29,661.77
  6. Step 6: Final answer
    x = 24,455.28

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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.