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Finding the Fourth Proportional to 62,613, 86,405.94 and 34,318.80

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Solution

The fourth proportional to 62,613, 86,405.94 and 34,318.80 is: 47,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,613 : 86,405.94 = 34,318.80 : x
  2. Step 2: Convert to fraction form
    62,613/86,405.94 = 34,318.80/x
  3. Step 3: Cross multiply
    62,613x = 86,405.94 × 34,318.80
  4. Step 4: Simplify right side
    62,613x = 2,965,348,173.67
  5. Step 5: Solve for x
    x = 2,965,348,173.67/62,613
  6. Step 6: Final answer
    x = 47,359.94

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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.