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Finding the Fourth Proportional to 18,106.66, 24,995.93 and 12,066.95

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Solution

The fourth proportional to 18,106.66, 24,995.93 and 12,066.95 is: 16,658.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,106.66 : 24,995.93 = 12,066.95 : x
  2. Step 2: Convert to fraction form
    18,106.66/24,995.93 = 12,066.95/x
  3. Step 3: Cross multiply
    18,106.66x = 24,995.93 × 12,066.95
  4. Step 4: Simplify right side
    18,106.66x = 301,624,577.18
  5. Step 5: Solve for x
    x = 301,624,577.18/18,106.66
  6. Step 6: Final answer
    x = 16,658.22

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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.