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Finding the Fourth Proportional to 65,079.40, 89,809.14 and 36,785.02

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Solution

The fourth proportional to 65,079.40, 89,809.14 and 36,785.02 is: 50,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,079.40 : 89,809.14 = 36,785.02 : x
  2. Step 2: Convert to fraction form
    65,079.40/89,809.14 = 36,785.02/x
  3. Step 3: Cross multiply
    65,079.40x = 89,809.14 × 36,785.02
  4. Step 4: Simplify right side
    65,079.40x = 3,303,631,011.08
  5. Step 5: Solve for x
    x = 3,303,631,011.08/65,079.40
  6. Step 6: Final answer
    x = 50,763.08

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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.