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Finding the Fourth Proportional to 33,395.94, 46,038.90 and 20,641.91

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Solution

The fourth proportional to 33,395.94, 46,038.90 and 20,641.91 is: 28,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,395.94 : 46,038.90 = 20,641.91 : x
  2. Step 2: Convert to fraction form
    33,395.94/46,038.90 = 20,641.91/x
  3. Step 3: Cross multiply
    33,395.94x = 46,038.90 × 20,641.91
  4. Step 4: Simplify right side
    33,395.94x = 950,330,600.10
  5. Step 5: Solve for x
    x = 950,330,600.10/33,395.94
  6. Step 6: Final answer
    x = 28,456.47

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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.