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Finding the Fourth Proportional to 12,858.08, 17,744.16 and 7,552.96

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Solution

The fourth proportional to 12,858.08, 17,744.16 and 7,552.96 is: 10,423.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.08 : 17,744.16 = 7,552.96 : x
  2. Step 2: Convert to fraction form
    12,858.08/17,744.16 = 7,552.96/x
  3. Step 3: Cross multiply
    12,858.08x = 17,744.16 × 7,552.96
  4. Step 4: Simplify right side
    12,858.08x = 134,020,930.71
  5. Step 5: Solve for x
    x = 134,020,930.71/12,858.08
  6. Step 6: Final answer
    x = 10,423.09

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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.