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Finding the Fourth Proportional to 19,358.01, 26,718.12 and 11,403

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Solution

The fourth proportional to 19,358.01, 26,718.12 and 11,403 is: 15,738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.01 : 26,718.12 = 11,403 : x
  2. Step 2: Convert to fraction form
    19,358.01/26,718.12 = 11,403/x
  3. Step 3: Cross multiply
    19,358.01x = 26,718.12 × 11,403
  4. Step 4: Simplify right side
    19,358.01x = 304,666,722.36
  5. Step 5: Solve for x
    x = 304,666,722.36/19,358.01
  6. Step 6: Final answer
    x = 15,738.54

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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.