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Finding the Fourth Proportional to 64,825, 97,253.91 and 18,077.88

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Solution

The fourth proportional to 64,825, 97,253.91 and 18,077.88 is: 27,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,825 : 97,253.91 = 18,077.88 : x
  2. Step 2: Convert to fraction form
    64,825/97,253.91 = 18,077.88/x
  3. Step 3: Cross multiply
    64,825x = 97,253.91 × 18,077.88
  4. Step 4: Simplify right side
    64,825x = 1,758,144,514.51
  5. Step 5: Solve for x
    x = 1,758,144,514.51/64,825
  6. Step 6: Final answer
    x = 27,121.40

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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.