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Finding the Fourth Proportional to 14,618.38, 21,918.78 and 6,711.00

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Solution

The fourth proportional to 14,618.38, 21,918.78 and 6,711.00 is: 10,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.38 : 21,918.78 = 6,711.00 : x
  2. Step 2: Convert to fraction form
    14,618.38/21,918.78 = 6,711.00/x
  3. Step 3: Cross multiply
    14,618.38x = 21,918.78 × 6,711.00
  4. Step 4: Simplify right side
    14,618.38x = 147,096,822.99
  5. Step 5: Solve for x
    x = 147,096,822.99/14,618.38
  6. Step 6: Final answer
    x = 10,062.46

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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.