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Finding the Fourth Proportional to 12,835.56, 17,713.32 and 7,246.56

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Solution

The fourth proportional to 12,835.56, 17,713.32 and 7,246.56 is: 10,000.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.56 : 17,713.32 = 7,246.56 : x
  2. Step 2: Convert to fraction form
    12,835.56/17,713.32 = 7,246.56/x
  3. Step 3: Cross multiply
    12,835.56x = 17,713.32 × 7,246.56
  4. Step 4: Simplify right side
    12,835.56x = 128,360,636.18
  5. Step 5: Solve for x
    x = 128,360,636.18/12,835.56
  6. Step 6: Final answer
    x = 10,000.39

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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.