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Finding the Fourth Proportional to 57,491.83, 86,203.18 and 21,955.51

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Solution

The fourth proportional to 57,491.83, 86,203.18 and 21,955.51 is: 32,920.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,491.83 : 86,203.18 = 21,955.51 : x
  2. Step 2: Convert to fraction form
    57,491.83/86,203.18 = 21,955.51/x
  3. Step 3: Cross multiply
    57,491.83x = 86,203.18 × 21,955.51
  4. Step 4: Simplify right side
    57,491.83x = 1,892,634,780.52
  5. Step 5: Solve for x
    x = 1,892,634,780.52/57,491.83
  6. Step 6: Final answer
    x = 32,920.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.