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Finding the Fourth Proportional to 56,615.78, 84,922.76 and 14,495.50

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Solution

The fourth proportional to 56,615.78, 84,922.76 and 14,495.50 is: 21,743.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,615.78 : 84,922.76 = 14,495.50 : x
  2. Step 2: Convert to fraction form
    56,615.78/84,922.76 = 14,495.50/x
  3. Step 3: Cross multiply
    56,615.78x = 84,922.76 × 14,495.50
  4. Step 4: Simplify right side
    56,615.78x = 1,230,997,867.58
  5. Step 5: Solve for x
    x = 1,230,997,867.58/56,615.78
  6. Step 6: Final answer
    x = 21,743.02

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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.