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Finding the Fourth Proportional to 62,776.87, 86,636.93 and 35,927.80

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Solution

The fourth proportional to 62,776.87, 86,636.93 and 35,927.80 is: 49,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,776.87 : 86,636.93 = 35,927.80 : x
  2. Step 2: Convert to fraction form
    62,776.87/86,636.93 = 35,927.80/x
  3. Step 3: Cross multiply
    62,776.87x = 86,636.93 × 35,927.80
  4. Step 4: Simplify right side
    62,776.87x = 3,112,673,897.42
  5. Step 5: Solve for x
    x = 3,112,673,897.42/62,776.87
  6. Step 6: Final answer
    x = 49,583.14

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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.