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Finding the Fourth Proportional to 65,354.78, 98,030.14 and 18,607.66

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Solution

The fourth proportional to 65,354.78, 98,030.14 and 18,607.66 is: 27,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,354.78 : 98,030.14 = 18,607.66 : x
  2. Step 2: Convert to fraction form
    65,354.78/98,030.14 = 18,607.66/x
  3. Step 3: Cross multiply
    65,354.78x = 98,030.14 × 18,607.66
  4. Step 4: Simplify right side
    65,354.78x = 1,824,111,514.87
  5. Step 5: Solve for x
    x = 1,824,111,514.87/65,354.78
  6. Step 6: Final answer
    x = 27,910.91

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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.