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Finding the Fourth Proportional to 56,555.44, 84,822.72 and 21,486.64

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Solution

The fourth proportional to 56,555.44, 84,822.72 and 21,486.64 is: 32,225.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,555.44 : 84,822.72 = 21,486.64 : x
  2. Step 2: Convert to fraction form
    56,555.44/84,822.72 = 21,486.64/x
  3. Step 3: Cross multiply
    56,555.44x = 84,822.72 × 21,486.64
  4. Step 4: Simplify right side
    56,555.44x = 1,822,555,248.46
  5. Step 5: Solve for x
    x = 1,822,555,248.46/56,555.44
  6. Step 6: Final answer
    x = 32,225.99

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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.