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Finding the Fourth Proportional to 18,061.71, 27,088.46 and 8,696.95

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Solution

The fourth proportional to 18,061.71, 27,088.46 and 8,696.95 is: 13,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,061.71 : 27,088.46 = 8,696.95 : x
  2. Step 2: Convert to fraction form
    18,061.71/27,088.46 = 8,696.95/x
  3. Step 3: Cross multiply
    18,061.71x = 27,088.46 × 8,696.95
  4. Step 4: Simplify right side
    18,061.71x = 235,586,903.60
  5. Step 5: Solve for x
    x = 235,586,903.60/18,061.71
  6. Step 6: Final answer
    x = 13,043.45

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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.