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Finding the Fourth Proportional to 65,470.89, 90,350.45 and 37,177.17

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Solution

The fourth proportional to 65,470.89, 90,350.45 and 37,177.17 is: 51,304.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,470.89 : 90,350.45 = 37,177.17 : x
  2. Step 2: Convert to fraction form
    65,470.89/90,350.45 = 37,177.17/x
  3. Step 3: Cross multiply
    65,470.89x = 90,350.45 × 37,177.17
  4. Step 4: Simplify right side
    65,470.89x = 3,358,973,853.34
  5. Step 5: Solve for x
    x = 3,358,973,853.34/65,470.89
  6. Step 6: Final answer
    x = 51,304.84

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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.