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Finding the Fourth Proportional to 19,230.93, 26,538.93 and 11,271.15

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Solution

The fourth proportional to 19,230.93, 26,538.93 and 11,271.15 is: 15,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,230.93 : 26,538.93 = 11,271.15 : x
  2. Step 2: Convert to fraction form
    19,230.93/26,538.93 = 11,271.15/x
  3. Step 3: Cross multiply
    19,230.93x = 26,538.93 × 11,271.15
  4. Step 4: Simplify right side
    19,230.93x = 299,124,260.87
  5. Step 5: Solve for x
    x = 299,124,260.87/19,230.93
  6. Step 6: Final answer
    x = 15,554.33

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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.