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Finding the Fourth Proportional to 37,388.16, 51,594.88 and 20,621.16

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Solution

The fourth proportional to 37,388.16, 51,594.88 and 20,621.16 is: 28,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,388.16 : 51,594.88 = 20,621.16 : x
  2. Step 2: Convert to fraction form
    37,388.16/51,594.88 = 20,621.16/x
  3. Step 3: Cross multiply
    37,388.16x = 51,594.88 × 20,621.16
  4. Step 4: Simplify right side
    37,388.16x = 1,063,946,275.66
  5. Step 5: Solve for x
    x = 1,063,946,275.66/37,388.16
  6. Step 6: Final answer
    x = 28,456.77

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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.