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Finding the Fourth Proportional to 14,605.77, 21,918.39 and 5,371.77

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Solution

The fourth proportional to 14,605.77, 21,918.39 and 5,371.77 is: 8,061.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.77 : 21,918.39 = 5,371.77 : x
  2. Step 2: Convert to fraction form
    14,605.77/21,918.39 = 5,371.77/x
  3. Step 3: Cross multiply
    14,605.77x = 21,918.39 × 5,371.77
  4. Step 4: Simplify right side
    14,605.77x = 117,740,549.85
  5. Step 5: Solve for x
    x = 117,740,549.85/14,605.77
  6. Step 6: Final answer
    x = 8,061.24

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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.