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Finding the Fourth Proportional to 7,486.91, 10,331.11 and 4,342.49

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Solution

The fourth proportional to 7,486.91, 10,331.11 and 4,342.49 is: 5,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.91 : 10,331.11 = 4,342.49 : x
  2. Step 2: Convert to fraction form
    7,486.91/10,331.11 = 4,342.49/x
  3. Step 3: Cross multiply
    7,486.91x = 10,331.11 × 4,342.49
  4. Step 4: Simplify right side
    7,486.91x = 44,862,741.86
  5. Step 5: Solve for x
    x = 44,862,741.86/7,486.91
  6. Step 6: Final answer
    x = 5,992.16

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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.