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Finding the Fourth Proportional to 38,250.25, 52,790.30 and 21,483.25

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Solution

The fourth proportional to 38,250.25, 52,790.30 and 21,483.25 is: 29,649.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,250.25 : 52,790.30 = 21,483.25 : x
  2. Step 2: Convert to fraction form
    38,250.25/52,790.30 = 21,483.25/x
  3. Step 3: Cross multiply
    38,250.25x = 52,790.30 × 21,483.25
  4. Step 4: Simplify right side
    38,250.25x = 1,134,107,212.48
  5. Step 5: Solve for x
    x = 1,134,107,212.48/38,250.25
  6. Step 6: Final answer
    x = 29,649.67

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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.