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Finding the Fourth Proportional to 8,907.94, 12,293.40 and 5,372.38

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Solution

The fourth proportional to 8,907.94, 12,293.40 and 5,372.38 is: 7,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.94 : 12,293.40 = 5,372.38 : x
  2. Step 2: Convert to fraction form
    8,907.94/12,293.40 = 5,372.38/x
  3. Step 3: Cross multiply
    8,907.94x = 12,293.40 × 5,372.38
  4. Step 4: Simplify right side
    8,907.94x = 66,044,816.29
  5. Step 5: Solve for x
    x = 66,044,816.29/8,907.94
  6. Step 6: Final answer
    x = 7,414.15

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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.