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Finding the Fourth Proportional to 56,618.80, 84,927.90 and 14,498.80

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Solution

The fourth proportional to 56,618.80, 84,927.90 and 14,498.80 is: 21,748.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,618.80 : 84,927.90 = 14,498.80 : x
  2. Step 2: Convert to fraction form
    56,618.80/84,927.90 = 14,498.80/x
  3. Step 3: Cross multiply
    56,618.80x = 84,927.90 × 14,498.80
  4. Step 4: Simplify right side
    56,618.80x = 1,231,352,564.03
  5. Step 5: Solve for x
    x = 1,231,352,564.03/56,618.80
  6. Step 6: Final answer
    x = 21,748.12

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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.