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Finding the Fourth Proportional to 56,886.19, 85,340.27 and 21,823.11

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Solution

The fourth proportional to 56,886.19, 85,340.27 and 21,823.11 is: 32,738.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,886.19 : 85,340.27 = 21,823.11 : x
  2. Step 2: Convert to fraction form
    56,886.19/85,340.27 = 21,823.11/x
  3. Step 3: Cross multiply
    56,886.19x = 85,340.27 × 21,823.11
  4. Step 4: Simplify right side
    56,886.19x = 1,862,390,099.64
  5. Step 5: Solve for x
    x = 1,862,390,099.64/56,886.19
  6. Step 6: Final answer
    x = 32,738.88

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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.