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Finding the Fourth Proportional to 9,871.71, 14,809.99 and 6,955.71

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Solution

The fourth proportional to 9,871.71, 14,809.99 and 6,955.71 is: 10,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.71 : 14,809.99 = 6,955.71 : x
  2. Step 2: Convert to fraction form
    9,871.71/14,809.99 = 6,955.71/x
  3. Step 3: Cross multiply
    9,871.71x = 14,809.99 × 6,955.71
  4. Step 4: Simplify right side
    9,871.71x = 103,013,935.66
  5. Step 5: Solve for x
    x = 103,013,935.66/9,871.71
  6. Step 6: Final answer
    x = 10,435.27

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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.