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Finding the Fourth Proportional to 19,302.91, 26,614.17 and 15,526.28

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Solution

The fourth proportional to 19,302.91, 26,614.17 and 15,526.28 is: 21,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,302.91 : 26,614.17 = 15,526.28 : x
  2. Step 2: Convert to fraction form
    19,302.91/26,614.17 = 15,526.28/x
  3. Step 3: Cross multiply
    19,302.91x = 26,614.17 × 15,526.28
  4. Step 4: Simplify right side
    19,302.91x = 413,219,121.92
  5. Step 5: Solve for x
    x = 413,219,121.92/19,302.91
  6. Step 6: Final answer
    x = 21,407.09

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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.