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Finding the Fourth Proportional to 64,237.76, 96,357.24 and 28,700.86

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Solution

The fourth proportional to 64,237.76, 96,357.24 and 28,700.86 is: 43,051.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,237.76 : 96,357.24 = 28,700.86 : x
  2. Step 2: Convert to fraction form
    64,237.76/96,357.24 = 28,700.86/x
  3. Step 3: Cross multiply
    64,237.76x = 96,357.24 × 28,700.86
  4. Step 4: Simplify right side
    64,237.76x = 2,765,535,655.23
  5. Step 5: Solve for x
    x = 2,765,535,655.23/64,237.76
  6. Step 6: Final answer
    x = 43,051.56

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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.