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Finding the Fourth Proportional to 65,205.80, 98,311.56 and 64,800.99

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Solution

The fourth proportional to 65,205.80, 98,311.56 and 64,800.99 is: 97,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,205.80 : 98,311.56 = 64,800.99 : x
  2. Step 2: Convert to fraction form
    65,205.80/98,311.56 = 64,800.99/x
  3. Step 3: Cross multiply
    65,205.80x = 98,311.56 × 64,800.99
  4. Step 4: Simplify right side
    65,205.80x = 6,370,686,338.22
  5. Step 5: Solve for x
    x = 6,370,686,338.22/65,205.80
  6. Step 6: Final answer
    x = 97,701.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.