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Finding the Fourth Proportional to 62,699.16, 86,523.66 and 34,404.60

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Solution

The fourth proportional to 62,699.16, 86,523.66 and 34,404.60 is: 47,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,699.16 : 86,523.66 = 34,404.60 : x
  2. Step 2: Convert to fraction form
    62,699.16/86,523.66 = 34,404.60/x
  3. Step 3: Cross multiply
    62,699.16x = 86,523.66 × 34,404.60
  4. Step 4: Simplify right side
    62,699.16x = 2,976,811,912.84
  5. Step 5: Solve for x
    x = 2,976,811,912.84/62,699.16
  6. Step 6: Final answer
    x = 47,477.70

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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.