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Finding the Fourth Proportional to 62,973.19, 86,906.64 and 36,115.48

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Solution

The fourth proportional to 62,973.19, 86,906.64 and 36,115.48 is: 49,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,973.19 : 86,906.64 = 36,115.48 : x
  2. Step 2: Convert to fraction form
    62,973.19/86,906.64 = 36,115.48/x
  3. Step 3: Cross multiply
    62,973.19x = 86,906.64 × 36,115.48
  4. Step 4: Simplify right side
    62,973.19x = 3,138,675,018.79
  5. Step 5: Solve for x
    x = 3,138,675,018.79/62,973.19
  6. Step 6: Final answer
    x = 49,841.45

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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.