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Finding the Fourth Proportional to 17,772.81, 26,653.07 and 9,887.31

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Solution

The fourth proportional to 17,772.81, 26,653.07 and 9,887.31 is: 14,827.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,772.81 : 26,653.07 = 9,887.31 : x
  2. Step 2: Convert to fraction form
    17,772.81/26,653.07 = 9,887.31/x
  3. Step 3: Cross multiply
    17,772.81x = 26,653.07 × 9,887.31
  4. Step 4: Simplify right side
    17,772.81x = 263,527,116.11
  5. Step 5: Solve for x
    x = 263,527,116.11/17,772.81
  6. Step 6: Final answer
    x = 14,827.54

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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.