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Finding the Fourth Proportional to 19,444.88, 26,837.88 and 11,486.72

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Solution

The fourth proportional to 19,444.88, 26,837.88 and 11,486.72 is: 15,854.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,444.88 : 26,837.88 = 11,486.72 : x
  2. Step 2: Convert to fraction form
    19,444.88/26,837.88 = 11,486.72/x
  3. Step 3: Cross multiply
    19,444.88x = 26,837.88 × 11,486.72
  4. Step 4: Simplify right side
    19,444.88x = 308,279,212.95
  5. Step 5: Solve for x
    x = 308,279,212.95/19,444.88
  6. Step 6: Final answer
    x = 15,854.00

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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.