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Finding the Fourth Proportional to 65,923.66, 90,980.58 and 37,638.46

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Solution

The fourth proportional to 65,923.66, 90,980.58 and 37,638.46 is: 51,944.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,923.66 : 90,980.58 = 37,638.46 : x
  2. Step 2: Convert to fraction form
    65,923.66/90,980.58 = 37,638.46/x
  3. Step 3: Cross multiply
    65,923.66x = 90,980.58 × 37,638.46
  4. Step 4: Simplify right side
    65,923.66x = 3,424,368,921.11
  5. Step 5: Solve for x
    x = 3,424,368,921.11/65,923.66
  6. Step 6: Final answer
    x = 51,944.46

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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.