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Finding the Fourth Proportional to 62,646.78, 86,457.96 and 34,357.92

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Solution

The fourth proportional to 62,646.78, 86,457.96 and 34,357.92 is: 47,416.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,646.78 : 86,457.96 = 34,357.92 : x
  2. Step 2: Convert to fraction form
    62,646.78/86,457.96 = 34,357.92/x
  3. Step 3: Cross multiply
    62,646.78x = 86,457.96 × 34,357.92
  4. Step 4: Simplify right side
    62,646.78x = 2,970,515,673.04
  5. Step 5: Solve for x
    x = 2,970,515,673.04/62,646.78
  6. Step 6: Final answer
    x = 47,416.89

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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.