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Finding the Fourth Proportional to 65,690.02, 90,652.33 and 37,395.71

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Solution

The fourth proportional to 65,690.02, 90,652.33 and 37,395.71 is: 51,606.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,690.02 : 90,652.33 = 37,395.71 : x
  2. Step 2: Convert to fraction form
    65,690.02/90,652.33 = 37,395.71/x
  3. Step 3: Cross multiply
    65,690.02x = 90,652.33 × 37,395.71
  4. Step 4: Simplify right side
    65,690.02x = 3,390,008,176.93
  5. Step 5: Solve for x
    x = 3,390,008,176.93/65,690.02
  6. Step 6: Final answer
    x = 51,606.14

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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.