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Finding the Fourth Proportional to 14,210.75, 19,610.93 and 7,923.17

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Solution

The fourth proportional to 14,210.75, 19,610.93 and 7,923.17 is: 10,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.75 : 19,610.93 = 7,923.17 : x
  2. Step 2: Convert to fraction form
    14,210.75/19,610.93 = 7,923.17/x
  3. Step 3: Cross multiply
    14,210.75x = 19,610.93 × 7,923.17
  4. Step 4: Simplify right side
    14,210.75x = 155,380,732.25
  5. Step 5: Solve for x
    x = 155,380,732.25/14,210.75
  6. Step 6: Final answer
    x = 10,934.03

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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.