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Finding the Fourth Proportional to 22,302.55, 30,750.60 and 19,272.25

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Solution

The fourth proportional to 22,302.55, 30,750.60 and 19,272.25 is: 26,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,302.55 : 30,750.60 = 19,272.25 : x
  2. Step 2: Convert to fraction form
    22,302.55/30,750.60 = 19,272.25/x
  3. Step 3: Cross multiply
    22,302.55x = 30,750.60 × 19,272.25
  4. Step 4: Simplify right side
    22,302.55x = 592,633,250.85
  5. Step 5: Solve for x
    x = 592,633,250.85/22,302.55
  6. Step 6: Final answer
    x = 26,572.44

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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.