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Finding the Fourth Proportional to 9,881.11, 14,811.54 and 6,369.76

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Solution

The fourth proportional to 9,881.11, 14,811.54 and 6,369.76 is: 9,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881.11 : 14,811.54 = 6,369.76 : x
  2. Step 2: Convert to fraction form
    9,881.11/14,811.54 = 6,369.76/x
  3. Step 3: Cross multiply
    9,881.11x = 14,811.54 × 6,369.76
  4. Step 4: Simplify right side
    9,881.11x = 94,345,955.03
  5. Step 5: Solve for x
    x = 94,345,955.03/9,881.11
  6. Step 6: Final answer
    x = 9,548.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.