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Finding the Fourth Proportional to 64,043.52, 96,085.80 and 28,973.76

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Solution

The fourth proportional to 64,043.52, 96,085.80 and 28,973.76 is: 43,469.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,043.52 : 96,085.80 = 28,973.76 : x
  2. Step 2: Convert to fraction form
    64,043.52/96,085.80 = 28,973.76/x
  3. Step 3: Cross multiply
    64,043.52x = 96,085.80 × 28,973.76
  4. Step 4: Simplify right side
    64,043.52x = 2,783,966,908.61
  5. Step 5: Solve for x
    x = 2,783,966,908.61/64,043.52
  6. Step 6: Final answer
    x = 43,469.92

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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.