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Finding the Fourth Proportional to 28,870.88, 43,308.77 and 8,094.38

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Solution

The fourth proportional to 28,870.88, 43,308.77 and 8,094.38 is: 12,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.88 : 43,308.77 = 8,094.38 : x
  2. Step 2: Convert to fraction form
    28,870.88/43,308.77 = 8,094.38/x
  3. Step 3: Cross multiply
    28,870.88x = 43,308.77 × 8,094.38
  4. Step 4: Simplify right side
    28,870.88x = 350,557,384.70
  5. Step 5: Solve for x
    x = 350,557,384.70/28,870.88
  6. Step 6: Final answer
    x = 12,142.25

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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.