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Finding the Fourth Proportional to 83,368.54, 115,037.87 and 47,556.42

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Solution

The fourth proportional to 83,368.54, 115,037.87 and 47,556.42 is: 65,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,368.54 : 115,037.87 = 47,556.42 : x
  2. Step 2: Convert to fraction form
    83,368.54/115,037.87 = 47,556.42/x
  3. Step 3: Cross multiply
    83,368.54x = 115,037.87 × 47,556.42
  4. Step 4: Simplify right side
    83,368.54x = 5,470,788,859.96
  5. Step 5: Solve for x
    x = 5,470,788,859.96/83,368.54
  6. Step 6: Final answer
    x = 65,621.74

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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.