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Finding the Fourth Proportional to 12,465.01, 18,713.85 and 8,768.98

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Solution

The fourth proportional to 12,465.01, 18,713.85 and 8,768.98 is: 13,164.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.01 : 18,713.85 = 8,768.98 : x
  2. Step 2: Convert to fraction form
    12,465.01/18,713.85 = 8,768.98/x
  3. Step 3: Cross multiply
    12,465.01x = 18,713.85 × 8,768.98
  4. Step 4: Simplify right side
    12,465.01x = 164,101,376.37
  5. Step 5: Solve for x
    x = 164,101,376.37/12,465.01
  6. Step 6: Final answer
    x = 13,164.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.