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Finding the Fourth Proportional to 8,585.54, 11,841.54 and 7,392.57

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Solution

The fourth proportional to 8,585.54, 11,841.54 and 7,392.57 is: 10,196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.54 : 11,841.54 = 7,392.57 : x
  2. Step 2: Convert to fraction form
    8,585.54/11,841.54 = 7,392.57/x
  3. Step 3: Cross multiply
    8,585.54x = 11,841.54 × 7,392.57
  4. Step 4: Simplify right side
    8,585.54x = 87,539,382.81
  5. Step 5: Solve for x
    x = 87,539,382.81/8,585.54
  6. Step 6: Final answer
    x = 10,196.14

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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.