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Finding the Fourth Proportional to 49,809.60, 74,714.40 and 49,291.20

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Solution

The fourth proportional to 49,809.60, 74,714.40 and 49,291.20 is: 73,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,809.60 : 74,714.40 = 49,291.20 : x
  2. Step 2: Convert to fraction form
    49,809.60/74,714.40 = 49,291.20/x
  3. Step 3: Cross multiply
    49,809.60x = 74,714.40 × 49,291.20
  4. Step 4: Simplify right side
    49,809.60x = 3,682,762,433.28
  5. Step 5: Solve for x
    x = 3,682,762,433.28/49,809.60
  6. Step 6: Final answer
    x = 73,936.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.