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Finding the Fourth Proportional to 6,885.86, 9,503.06 and 4,233.92

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Solution

The fourth proportional to 6,885.86, 9,503.06 and 4,233.92 is: 5,843.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.86 : 9,503.06 = 4,233.92 : x
  2. Step 2: Convert to fraction form
    6,885.86/9,503.06 = 4,233.92/x
  3. Step 3: Cross multiply
    6,885.86x = 9,503.06 × 4,233.92
  4. Step 4: Simplify right side
    6,885.86x = 40,235,127.11
  5. Step 5: Solve for x
    x = 40,235,127.11/6,885.86
  6. Step 6: Final answer
    x = 5,843.16

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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.