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Finding the Fourth Proportional to 14,668.92, 21,900.69 and 13,424.76

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Solution

The fourth proportional to 14,668.92, 21,900.69 and 13,424.76 is: 20,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,668.92 : 21,900.69 = 13,424.76 : x
  2. Step 2: Convert to fraction form
    14,668.92/21,900.69 = 13,424.76/x
  3. Step 3: Cross multiply
    14,668.92x = 21,900.69 × 13,424.76
  4. Step 4: Simplify right side
    14,668.92x = 294,011,507.08
  5. Step 5: Solve for x
    x = 294,011,507.08/14,668.92
  6. Step 6: Final answer
    x = 20,043.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.