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Finding the Fourth Proportional to 65,681.01, 90,644.43 and 36,611.23

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Solution

The fourth proportional to 65,681.01, 90,644.43 and 36,611.23 is: 50,526.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,681.01 : 90,644.43 = 36,611.23 : x
  2. Step 2: Convert to fraction form
    65,681.01/90,644.43 = 36,611.23/x
  3. Step 3: Cross multiply
    65,681.01x = 90,644.43 × 36,611.23
  4. Step 4: Simplify right side
    65,681.01x = 3,318,604,074.95
  5. Step 5: Solve for x
    x = 3,318,604,074.95/65,681.01
  6. Step 6: Final answer
    x = 50,526.08

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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.