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Finding the Fourth Proportional to 21,757.71, 32,615.76 and 6,957.19

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Solution

The fourth proportional to 21,757.71, 32,615.76 and 6,957.19 is: 10,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757.71 : 32,615.76 = 6,957.19 : x
  2. Step 2: Convert to fraction form
    21,757.71/32,615.76 = 6,957.19/x
  3. Step 3: Cross multiply
    21,757.71x = 32,615.76 × 6,957.19
  4. Step 4: Simplify right side
    21,757.71x = 226,914,106.17
  5. Step 5: Solve for x
    x = 226,914,106.17/21,757.71
  6. Step 6: Final answer
    x = 10,429.13

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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.