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Finding the Fourth Proportional to 62,778.99, 86,649.93 and 35,937

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Solution

The fourth proportional to 62,778.99, 86,649.93 and 35,937 is: 49,601.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,778.99 : 86,649.93 = 35,937 : x
  2. Step 2: Convert to fraction form
    62,778.99/86,649.93 = 35,937/x
  3. Step 3: Cross multiply
    62,778.99x = 86,649.93 × 35,937
  4. Step 4: Simplify right side
    62,778.99x = 3,113,938,534.41
  5. Step 5: Solve for x
    x = 3,113,938,534.41/62,778.99
  6. Step 6: Final answer
    x = 49,601.60

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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.