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Finding the Fourth Proportional to 8,436.69, 11,645.10 and 4,901.31

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Solution

The fourth proportional to 8,436.69, 11,645.10 and 4,901.31 is: 6,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.69 : 11,645.10 = 4,901.31 : x
  2. Step 2: Convert to fraction form
    8,436.69/11,645.10 = 4,901.31/x
  3. Step 3: Cross multiply
    8,436.69x = 11,645.10 × 4,901.31
  4. Step 4: Simplify right side
    8,436.69x = 57,076,245.08
  5. Step 5: Solve for x
    x = 57,076,245.08/8,436.69
  6. Step 6: Final answer
    x = 6,765.24

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Half scale
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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.