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Finding the Fourth Proportional to 64,235.63, 96,354.06 and 28,698.74

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Solution

The fourth proportional to 64,235.63, 96,354.06 and 28,698.74 is: 43,048.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,235.63 : 96,354.06 = 28,698.74 : x
  2. Step 2: Convert to fraction form
    64,235.63/96,354.06 = 28,698.74/x
  3. Step 3: Cross multiply
    64,235.63x = 96,354.06 × 28,698.74
  4. Step 4: Simplify right side
    64,235.63x = 2,765,239,887.82
  5. Step 5: Solve for x
    x = 2,765,239,887.82/64,235.63
  6. Step 6: Final answer
    x = 43,048.38

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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.