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Finding the Fourth Proportional to 28,884.83, 43,328.78 and 9,164.93

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Solution

The fourth proportional to 28,884.83, 43,328.78 and 9,164.93 is: 13,747.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.83 : 43,328.78 = 9,164.93 : x
  2. Step 2: Convert to fraction form
    28,884.83/43,328.78 = 9,164.93/x
  3. Step 3: Cross multiply
    28,884.83x = 43,328.78 × 9,164.93
  4. Step 4: Simplify right side
    28,884.83x = 397,104,973.22
  5. Step 5: Solve for x
    x = 397,104,973.22/28,884.83
  6. Step 6: Final answer
    x = 13,747.88

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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.