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Finding the Fourth Proportional to 35,620.92, 49,148.91 and 21,276.90

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Solution

The fourth proportional to 35,620.92, 49,148.91 and 21,276.90 is: 29,357.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,620.92 : 49,148.91 = 21,276.90 : x
  2. Step 2: Convert to fraction form
    35,620.92/49,148.91 = 21,276.90/x
  3. Step 3: Cross multiply
    35,620.92x = 49,148.91 × 21,276.90
  4. Step 4: Simplify right side
    35,620.92x = 1,045,736,443.18
  5. Step 5: Solve for x
    x = 1,045,736,443.18/35,620.92
  6. Step 6: Final answer
    x = 29,357.37

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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.