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Finding the Fourth Proportional to 29,168.75, 40,216.01 and 19,081.20

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Solution

The fourth proportional to 29,168.75, 40,216.01 and 19,081.20 is: 26,307.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,168.75 : 40,216.01 = 19,081.20 : x
  2. Step 2: Convert to fraction form
    29,168.75/40,216.01 = 19,081.20/x
  3. Step 3: Cross multiply
    29,168.75x = 40,216.01 × 19,081.20
  4. Step 4: Simplify right side
    29,168.75x = 767,369,634.61
  5. Step 5: Solve for x
    x = 767,369,634.61/29,168.75
  6. Step 6: Final answer
    x = 26,307.94

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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.