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Finding the Fourth Proportional to 65,205.05, 98,310.42 and 64,800.24

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Solution

The fourth proportional to 65,205.05, 98,310.42 and 64,800.24 is: 97,700.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,205.05 : 98,310.42 = 64,800.24 : x
  2. Step 2: Convert to fraction form
    65,205.05/98,310.42 = 64,800.24/x
  3. Step 3: Cross multiply
    65,205.05x = 98,310.42 × 64,800.24
  4. Step 4: Simplify right side
    65,205.05x = 6,370,539,177.08
  5. Step 5: Solve for x
    x = 6,370,539,177.08/65,205.05
  6. Step 6: Final answer
    x = 97,700.09

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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.