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Finding the Fourth Proportional to 18,886.08, 26,060.99 and 10,388.06

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Solution

The fourth proportional to 18,886.08, 26,060.99 and 10,388.06 is: 14,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.08 : 26,060.99 = 10,388.06 : x
  2. Step 2: Convert to fraction form
    18,886.08/26,060.99 = 10,388.06/x
  3. Step 3: Cross multiply
    18,886.08x = 26,060.99 × 10,388.06
  4. Step 4: Simplify right side
    18,886.08x = 270,723,127.78
  5. Step 5: Solve for x
    x = 270,723,127.78/18,886.08
  6. Step 6: Final answer
    x = 14,334.53

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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.