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Finding the Fourth Proportional to 28,584.82, 39,447.03 and 16,656.22

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Solution

The fourth proportional to 28,584.82, 39,447.03 and 16,656.22 is: 22,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,584.82 : 39,447.03 = 16,656.22 : x
  2. Step 2: Convert to fraction form
    28,584.82/39,447.03 = 16,656.22/x
  3. Step 3: Cross multiply
    28,584.82x = 39,447.03 × 16,656.22
  4. Step 4: Simplify right side
    28,584.82x = 657,038,410.03
  5. Step 5: Solve for x
    x = 657,038,410.03/28,584.82
  6. Step 6: Final answer
    x = 22,985.57

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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.