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Finding the Fourth Proportional to 14,326.90, 21,491.81 and 4,964.77

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Solution

The fourth proportional to 14,326.90, 21,491.81 and 4,964.77 is: 7,447.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,326.90 : 21,491.81 = 4,964.77 : x
  2. Step 2: Convert to fraction form
    14,326.90/21,491.81 = 4,964.77/x
  3. Step 3: Cross multiply
    14,326.90x = 21,491.81 × 4,964.77
  4. Step 4: Simplify right side
    14,326.90x = 106,701,839.78
  5. Step 5: Solve for x
    x = 106,701,839.78/14,326.90
  6. Step 6: Final answer
    x = 7,447.66

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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.