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Finding the Fourth Proportional to 56,886.75, 85,322.61 and 16,904.88

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Solution

The fourth proportional to 56,886.75, 85,322.61 and 16,904.88 is: 25,355.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,886.75 : 85,322.61 = 16,904.88 : x
  2. Step 2: Convert to fraction form
    56,886.75/85,322.61 = 16,904.88/x
  3. Step 3: Cross multiply
    56,886.75x = 85,322.61 × 16,904.88
  4. Step 4: Simplify right side
    56,886.75x = 1,442,368,483.34
  5. Step 5: Solve for x
    x = 1,442,368,483.34/56,886.75
  6. Step 6: Final answer
    x = 25,355.09

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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.