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Finding the Fourth Proportional to 70,046.08, 96,659.64 and 39,838.74

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Solution

The fourth proportional to 70,046.08, 96,659.64 and 39,838.74 is: 54,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046.08 : 96,659.64 = 39,838.74 : x
  2. Step 2: Convert to fraction form
    70,046.08/96,659.64 = 39,838.74/x
  3. Step 3: Cross multiply
    70,046.08x = 96,659.64 × 39,838.74
  4. Step 4: Simplify right side
    70,046.08x = 3,850,798,266.45
  5. Step 5: Solve for x
    x = 3,850,798,266.45/70,046.08
  6. Step 6: Final answer
    x = 54,975.21

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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.