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Finding the Fourth Proportional to 12,245.66, 16,899.36 and 7,465.88

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Solution

The fourth proportional to 12,245.66, 16,899.36 and 7,465.88 is: 10,303.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.66 : 16,899.36 = 7,465.88 : x
  2. Step 2: Convert to fraction form
    12,245.66/16,899.36 = 7,465.88/x
  3. Step 3: Cross multiply
    12,245.66x = 16,899.36 × 7,465.88
  4. Step 4: Simplify right side
    12,245.66x = 126,168,593.84
  5. Step 5: Solve for x
    x = 126,168,593.84/12,245.66
  6. Step 6: Final answer
    x = 10,303.13

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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.