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Finding the Fourth Proportional to 64,272.15, 88,668.06 and 38,764.01

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Solution

The fourth proportional to 64,272.15, 88,668.06 and 38,764.01 is: 53,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,272.15 : 88,668.06 = 38,764.01 : x
  2. Step 2: Convert to fraction form
    64,272.15/88,668.06 = 38,764.01/x
  3. Step 3: Cross multiply
    64,272.15x = 88,668.06 × 38,764.01
  4. Step 4: Simplify right side
    64,272.15x = 3,437,129,121.18
  5. Step 5: Solve for x
    x = 3,437,129,121.18/64,272.15
  6. Step 6: Final answer
    x = 53,477.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.