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Finding the Fourth Proportional to 60,611.84, 90,887.35 and 35,319.55

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Solution

The fourth proportional to 60,611.84, 90,887.35 and 35,319.55 is: 52,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,611.84 : 90,887.35 = 35,319.55 : x
  2. Step 2: Convert to fraction form
    60,611.84/90,887.35 = 35,319.55/x
  3. Step 3: Cross multiply
    60,611.84x = 90,887.35 × 35,319.55
  4. Step 4: Simplify right side
    60,611.84x = 3,210,100,302.69
  5. Step 5: Solve for x
    x = 3,210,100,302.69/60,611.84
  6. Step 6: Final answer
    x = 52,961.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.