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Finding the Fourth Proportional to 11,504.91, 15,866.94 and 7,925.58

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Solution

The fourth proportional to 11,504.91, 15,866.94 and 7,925.58 is: 10,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,504.91 : 15,866.94 = 7,925.58 : x
  2. Step 2: Convert to fraction form
    11,504.91/15,866.94 = 7,925.58/x
  3. Step 3: Cross multiply
    11,504.91x = 15,866.94 × 7,925.58
  4. Step 4: Simplify right side
    11,504.91x = 125,754,702.33
  5. Step 5: Solve for x
    x = 125,754,702.33/11,504.91
  6. Step 6: Final answer
    x = 10,930.52

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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.