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Finding the Fourth Proportional to 70,908.60, 97,894.68 and 47,067.60

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Solution

The fourth proportional to 70,908.60, 97,894.68 and 47,067.60 is: 64,980.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,908.60 : 97,894.68 = 47,067.60 : x
  2. Step 2: Convert to fraction form
    70,908.60/97,894.68 = 47,067.60/x
  3. Step 3: Cross multiply
    70,908.60x = 97,894.68 × 47,067.60
  4. Step 4: Simplify right side
    70,908.60x = 4,607,667,640.37
  5. Step 5: Solve for x
    x = 4,607,667,640.37/70,908.60
  6. Step 6: Final answer
    x = 64,980.38

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1.5x scale

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.