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Finding the Fourth Proportional to 31,005.40, 46,410.90 and 22,257.40

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Solution

The fourth proportional to 31,005.40, 46,410.90 and 22,257.40 is: 33,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,005.40 : 46,410.90 = 22,257.40 : x
  2. Step 2: Convert to fraction form
    31,005.40/46,410.90 = 22,257.40/x
  3. Step 3: Cross multiply
    31,005.40x = 46,410.90 × 22,257.40
  4. Step 4: Simplify right side
    31,005.40x = 1,032,985,965.66
  5. Step 5: Solve for x
    x = 1,032,985,965.66/31,005.40
  6. Step 6: Final answer
    x = 33,316.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.