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Finding the Fourth Proportional to 37,689.75, 52,014.29 and 20,922.75

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Solution

The fourth proportional to 37,689.75, 52,014.29 and 20,922.75 is: 28,874.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,689.75 : 52,014.29 = 20,922.75 : x
  2. Step 2: Convert to fraction form
    37,689.75/52,014.29 = 20,922.75/x
  3. Step 3: Cross multiply
    37,689.75x = 52,014.29 × 20,922.75
  4. Step 4: Simplify right side
    37,689.75x = 1,088,281,881.48
  5. Step 5: Solve for x
    x = 1,088,281,881.48/37,689.75
  6. Step 6: Final answer
    x = 28,874.74

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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.