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Finding the Fourth Proportional to 62,772.16, 86,640.64 and 35,930.22

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Solution

The fourth proportional to 62,772.16, 86,640.64 and 35,930.22 is: 49,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,772.16 : 86,640.64 = 35,930.22 : x
  2. Step 2: Convert to fraction form
    62,772.16/86,640.64 = 35,930.22/x
  3. Step 3: Cross multiply
    62,772.16x = 86,640.64 × 35,930.22
  4. Step 4: Simplify right side
    62,772.16x = 3,113,017,256.14
  5. Step 5: Solve for x
    x = 3,113,017,256.14/62,772.16
  6. Step 6: Final answer
    x = 49,592.32

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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.