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Finding the Fourth Proportional to 65,809.40, 98,714.10 and 26,394.80

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Solution

The fourth proportional to 65,809.40, 98,714.10 and 26,394.80 is: 39,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,809.40 : 98,714.10 = 26,394.80 : x
  2. Step 2: Convert to fraction form
    65,809.40/98,714.10 = 26,394.80/x
  3. Step 3: Cross multiply
    65,809.40x = 98,714.10 × 26,394.80
  4. Step 4: Simplify right side
    65,809.40x = 2,605,538,926.68
  5. Step 5: Solve for x
    x = 2,605,538,926.68/65,809.40
  6. Step 6: Final answer
    x = 39,592.20

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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.