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Finding the Fourth Proportional to 8,892.33, 12,270.36 and 5,306.63

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Solution

The fourth proportional to 8,892.33, 12,270.36 and 5,306.63 is: 7,322.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.33 : 12,270.36 = 5,306.63 : x
  2. Step 2: Convert to fraction form
    8,892.33/12,270.36 = 5,306.63/x
  3. Step 3: Cross multiply
    8,892.33x = 12,270.36 × 5,306.63
  4. Step 4: Simplify right side
    8,892.33x = 65,114,199.14
  5. Step 5: Solve for x
    x = 65,114,199.14/8,892.33
  6. Step 6: Final answer
    x = 7,322.51

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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.