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Finding the Fourth Proportional to 9,343.14, 12,892.95 and 5,151.48

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Solution

The fourth proportional to 9,343.14, 12,892.95 and 5,151.48 is: 7,108.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,343.14 : 12,892.95 = 5,151.48 : x
  2. Step 2: Convert to fraction form
    9,343.14/12,892.95 = 5,151.48/x
  3. Step 3: Cross multiply
    9,343.14x = 12,892.95 × 5,151.48
  4. Step 4: Simplify right side
    9,343.14x = 66,417,774.07
  5. Step 5: Solve for x
    x = 66,417,774.07/9,343.14
  6. Step 6: Final answer
    x = 7,108.72

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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.