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Finding the Fourth Proportional to 66,009.68, 91,061.16 and 37,707.92

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Solution

The fourth proportional to 66,009.68, 91,061.16 and 37,707.92 is: 52,018.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,009.68 : 91,061.16 = 37,707.92 : x
  2. Step 2: Convert to fraction form
    66,009.68/91,061.16 = 37,707.92/x
  3. Step 3: Cross multiply
    66,009.68x = 91,061.16 × 37,707.92
  4. Step 4: Simplify right side
    66,009.68x = 3,433,726,936.39
  5. Step 5: Solve for x
    x = 3,433,726,936.39/66,009.68
  6. Step 6: Final answer
    x = 52,018.54

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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.