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Finding the Fourth Proportional to 65,343.80, 98,015.70 and 59,814.20

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Solution

The fourth proportional to 65,343.80, 98,015.70 and 59,814.20 is: 89,721.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343.80 : 98,015.70 = 59,814.20 : x
  2. Step 2: Convert to fraction form
    65,343.80/98,015.70 = 59,814.20/x
  3. Step 3: Cross multiply
    65,343.80x = 98,015.70 × 59,814.20
  4. Step 4: Simplify right side
    65,343.80x = 5,862,730,682.94
  5. Step 5: Solve for x
    x = 5,862,730,682.94/65,343.80
  6. Step 6: Final answer
    x = 89,721.30

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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.