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Finding the Fourth Proportional to 12,732.66, 19,085.66 and 4,292.86

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Solution

The fourth proportional to 12,732.66, 19,085.66 and 4,292.86 is: 6,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,732.66 : 19,085.66 = 4,292.86 : x
  2. Step 2: Convert to fraction form
    12,732.66/19,085.66 = 4,292.86/x
  3. Step 3: Cross multiply
    12,732.66x = 19,085.66 × 4,292.86
  4. Step 4: Simplify right side
    12,732.66x = 81,932,066.39
  5. Step 5: Solve for x
    x = 81,932,066.39/12,732.66
  6. Step 6: Final answer
    x = 6,434.80

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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.