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Finding the Fourth Proportional to 29,111.76, 40,164.84 and 17,179.08

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Solution

The fourth proportional to 29,111.76, 40,164.84 and 17,179.08 is: 23,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,111.76 : 40,164.84 = 17,179.08 : x
  2. Step 2: Convert to fraction form
    29,111.76/40,164.84 = 17,179.08/x
  3. Step 3: Cross multiply
    29,111.76x = 40,164.84 × 17,179.08
  4. Step 4: Simplify right side
    29,111.76x = 689,994,999.55
  5. Step 5: Solve for x
    x = 689,994,999.55/29,111.76
  6. Step 6: Final answer
    x = 23,701.59

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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.