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Finding the Fourth Proportional to 52,705, 72,750.18 and 37,844.20

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Solution

The fourth proportional to 52,705, 72,750.18 and 37,844.20 is: 52,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,705 : 72,750.18 = 37,844.20 : x
  2. Step 2: Convert to fraction form
    52,705/72,750.18 = 37,844.20/x
  3. Step 3: Cross multiply
    52,705x = 72,750.18 × 37,844.20
  4. Step 4: Simplify right side
    52,705x = 2,753,172,361.96
  5. Step 5: Solve for x
    x = 2,753,172,361.96/52,705
  6. Step 6: Final answer
    x = 52,237.40

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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.