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Finding the Fourth Proportional to 27,312.60, 40,920.30 and 22,355.40

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Solution

The fourth proportional to 27,312.60, 40,920.30 and 22,355.40 is: 33,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.60 : 40,920.30 = 22,355.40 : x
  2. Step 2: Convert to fraction form
    27,312.60/40,920.30 = 22,355.40/x
  3. Step 3: Cross multiply
    27,312.60x = 40,920.30 × 22,355.40
  4. Step 4: Simplify right side
    27,312.60x = 914,789,674.62
  5. Step 5: Solve for x
    x = 914,789,674.62/27,312.60
  6. Step 6: Final answer
    x = 33,493.32

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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.