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Finding the Fourth Proportional to 37,587.25, 51,870.52 and 20,820.25

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Solution

The fourth proportional to 37,587.25, 51,870.52 and 20,820.25 is: 28,732.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,587.25 : 51,870.52 = 20,820.25 : x
  2. Step 2: Convert to fraction form
    37,587.25/51,870.52 = 20,820.25/x
  3. Step 3: Cross multiply
    37,587.25x = 51,870.52 × 20,820.25
  4. Step 4: Simplify right side
    37,587.25x = 1,079,957,194.03
  5. Step 5: Solve for x
    x = 1,079,957,194.03/37,587.25
  6. Step 6: Final answer
    x = 28,732.01

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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.