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Finding the Fourth Proportional to 14,463.36, 21,695.04 and 7,880.49

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Solution

The fourth proportional to 14,463.36, 21,695.04 and 7,880.49 is: 11,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,463.36 : 21,695.04 = 7,880.49 : x
  2. Step 2: Convert to fraction form
    14,463.36/21,695.04 = 7,880.49/x
  3. Step 3: Cross multiply
    14,463.36x = 21,695.04 × 7,880.49
  4. Step 4: Simplify right side
    14,463.36x = 170,967,545.77
  5. Step 5: Solve for x
    x = 170,967,545.77/14,463.36
  6. Step 6: Final answer
    x = 11,820.74

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Similar ratio
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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.