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Finding the Fourth Proportional to 19,607.85, 27,058.86 and 10,655.46

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Solution

The fourth proportional to 19,607.85, 27,058.86 and 10,655.46 is: 14,704.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,607.85 : 27,058.86 = 10,655.46 : x
  2. Step 2: Convert to fraction form
    19,607.85/27,058.86 = 10,655.46/x
  3. Step 3: Cross multiply
    19,607.85x = 27,058.86 × 10,655.46
  4. Step 4: Simplify right side
    19,607.85x = 288,324,600.38
  5. Step 5: Solve for x
    x = 288,324,600.38/19,607.85
  6. Step 6: Final answer
    x = 14,704.55

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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.