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Finding the Fourth Proportional to 65,888.01, 90,923.76 and 36,816.60

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Solution

The fourth proportional to 65,888.01, 90,923.76 and 36,816.60 is: 50,805.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,888.01 : 90,923.76 = 36,816.60 : x
  2. Step 2: Convert to fraction form
    65,888.01/90,923.76 = 36,816.60/x
  3. Step 3: Cross multiply
    65,888.01x = 90,923.76 × 36,816.60
  4. Step 4: Simplify right side
    65,888.01x = 3,347,503,702.42
  5. Step 5: Solve for x
    x = 3,347,503,702.42/65,888.01
  6. Step 6: Final answer
    x = 50,805.96

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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.