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Finding the Fourth Proportional to 14,393.78, 19,862.97 and 8,106.02

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Solution

The fourth proportional to 14,393.78, 19,862.97 and 8,106.02 is: 11,186.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.78 : 19,862.97 = 8,106.02 : x
  2. Step 2: Convert to fraction form
    14,393.78/19,862.97 = 8,106.02/x
  3. Step 3: Cross multiply
    14,393.78x = 19,862.97 × 8,106.02
  4. Step 4: Simplify right side
    14,393.78x = 161,009,632.08
  5. Step 5: Solve for x
    x = 161,009,632.08/14,393.78
  6. Step 6: Final answer
    x = 11,186.06

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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.