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Finding the Fourth Proportional to 55,643.29, 76,823.13 and 36,556.99

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Solution

The fourth proportional to 55,643.29, 76,823.13 and 36,556.99 is: 50,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,643.29 : 76,823.13 = 36,556.99 : x
  2. Step 2: Convert to fraction form
    55,643.29/76,823.13 = 36,556.99/x
  3. Step 3: Cross multiply
    55,643.29x = 76,823.13 × 36,556.99
  4. Step 4: Simplify right side
    55,643.29x = 2,808,422,340.21
  5. Step 5: Solve for x
    x = 2,808,422,340.21/55,643.29
  6. Step 6: Final answer
    x = 50,471.90

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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.