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Finding the Fourth Proportional to 65,839.40, 98,672.70 and 26,364.20

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Solution

The fourth proportional to 65,839.40, 98,672.70 and 26,364.20 is: 39,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,839.40 : 98,672.70 = 26,364.20 : x
  2. Step 2: Convert to fraction form
    65,839.40/98,672.70 = 26,364.20/x
  3. Step 3: Cross multiply
    65,839.40x = 98,672.70 × 26,364.20
  4. Step 4: Simplify right side
    65,839.40x = 2,601,426,797.34
  5. Step 5: Solve for x
    x = 2,601,426,797.34/65,839.40
  6. Step 6: Final answer
    x = 39,511.70

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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.