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Finding the Fourth Proportional to 8,893.14, 12,271.73 and 5,115.30

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Solution

The fourth proportional to 8,893.14, 12,271.73 and 5,115.30 is: 7,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,893.14 : 12,271.73 = 5,115.30 : x
  2. Step 2: Convert to fraction form
    8,893.14/12,271.73 = 5,115.30/x
  3. Step 3: Cross multiply
    8,893.14x = 12,271.73 × 5,115.30
  4. Step 4: Simplify right side
    8,893.14x = 62,773,580.47
  5. Step 5: Solve for x
    x = 62,773,580.47/8,893.14
  6. Step 6: Final answer
    x = 7,058.65

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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.