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Finding the Fourth Proportional to 65,274.90, 90,079.04 and 36,980.52

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Solution

The fourth proportional to 65,274.90, 90,079.04 and 36,980.52 is: 51,032.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,274.90 : 90,079.04 = 36,980.52 : x
  2. Step 2: Convert to fraction form
    65,274.90/90,079.04 = 36,980.52/x
  3. Step 3: Cross multiply
    65,274.90x = 90,079.04 × 36,980.52
  4. Step 4: Simplify right side
    65,274.90x = 3,331,169,740.30
  5. Step 5: Solve for x
    x = 3,331,169,740.30/65,274.90
  6. Step 6: Final answer
    x = 51,032.94

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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.