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Finding the Fourth Proportional to 57,495.84, 86,209.16 and 21,959.52

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Solution

The fourth proportional to 57,495.84, 86,209.16 and 21,959.52 is: 32,926.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,495.84 : 86,209.16 = 21,959.52 : x
  2. Step 2: Convert to fraction form
    57,495.84/86,209.16 = 21,959.52/x
  3. Step 3: Cross multiply
    57,495.84x = 86,209.16 × 21,959.52
  4. Step 4: Simplify right side
    57,495.84x = 1,893,111,773.20
  5. Step 5: Solve for x
    x = 1,893,111,773.20/57,495.84
  6. Step 6: Final answer
    x = 32,926.07

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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.