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Finding the Fourth Proportional to 37,620.20, 51,925.20 and 21,714.20

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Solution

The fourth proportional to 37,620.20, 51,925.20 and 21,714.20 is: 29,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,620.20 : 51,925.20 = 21,714.20 : x
  2. Step 2: Convert to fraction form
    37,620.20/51,925.20 = 21,714.20/x
  3. Step 3: Cross multiply
    37,620.20x = 51,925.20 × 21,714.20
  4. Step 4: Simplify right side
    37,620.20x = 1,127,514,177.84
  5. Step 5: Solve for x
    x = 1,127,514,177.84/37,620.20
  6. Step 6: Final answer
    x = 29,970.98

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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.