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Finding the Fourth Proportional to 69,281.91, 95,607.12 and 39,066.99

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Solution

The fourth proportional to 69,281.91, 95,607.12 and 39,066.99 is: 53,911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,281.91 : 95,607.12 = 39,066.99 : x
  2. Step 2: Convert to fraction form
    69,281.91/95,607.12 = 39,066.99/x
  3. Step 3: Cross multiply
    69,281.91x = 95,607.12 × 39,066.99
  4. Step 4: Simplify right side
    69,281.91x = 3,735,082,400.97
  5. Step 5: Solve for x
    x = 3,735,082,400.97/69,281.91
  6. Step 6: Final answer
    x = 53,911.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.