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Finding the Fourth Proportional to 14,273.15, 19,696.98 and 7,900.18

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Solution

The fourth proportional to 14,273.15, 19,696.98 and 7,900.18 is: 10,902.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.15 : 19,696.98 = 7,900.18 : x
  2. Step 2: Convert to fraction form
    14,273.15/19,696.98 = 7,900.18/x
  3. Step 3: Cross multiply
    14,273.15x = 19,696.98 × 7,900.18
  4. Step 4: Simplify right side
    14,273.15x = 155,609,687.46
  5. Step 5: Solve for x
    x = 155,609,687.46/14,273.15
  6. Step 6: Final answer
    x = 10,902.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.