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Finding the Fourth Proportional to 14,073.67, 19,420.87 and 7,698.99

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Solution

The fourth proportional to 14,073.67, 19,420.87 and 7,698.99 is: 10,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,073.67 : 19,420.87 = 7,698.99 : x
  2. Step 2: Convert to fraction form
    14,073.67/19,420.87 = 7,698.99/x
  3. Step 3: Cross multiply
    14,073.67x = 19,420.87 × 7,698.99
  4. Step 4: Simplify right side
    14,073.67x = 149,521,083.92
  5. Step 5: Solve for x
    x = 149,521,083.92/14,073.67
  6. Step 6: Final answer
    x = 10,624.17

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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.