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Finding the Fourth Proportional to 28,713.93, 43,067.48 and 7,655.55

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Solution

The fourth proportional to 28,713.93, 43,067.48 and 7,655.55 is: 11,482.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.93 : 43,067.48 = 7,655.55 : x
  2. Step 2: Convert to fraction form
    28,713.93/43,067.48 = 7,655.55/x
  3. Step 3: Cross multiply
    28,713.93x = 43,067.48 × 7,655.55
  4. Step 4: Simplify right side
    28,713.93x = 329,705,208.24
  5. Step 5: Solve for x
    x = 329,705,208.24/28,713.93
  6. Step 6: Final answer
    x = 11,482.41

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1.5x scale

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.