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Finding the Fourth Proportional to 37,855.58, 52,238.54 and 21,719.48

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Solution

The fourth proportional to 37,855.58, 52,238.54 and 21,719.48 is: 29,971.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,855.58 : 52,238.54 = 21,719.48 : x
  2. Step 2: Convert to fraction form
    37,855.58/52,238.54 = 21,719.48/x
  3. Step 3: Cross multiply
    37,855.58x = 52,238.54 × 21,719.48
  4. Step 4: Simplify right side
    37,855.58x = 1,134,593,717.87
  5. Step 5: Solve for x
    x = 1,134,593,717.87/37,855.58
  6. Step 6: Final answer
    x = 29,971.64

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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.