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Finding the Fourth Proportional to 90,415.59, 135,632.51 and 23,860.32

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Solution

The fourth proportional to 90,415.59, 135,632.51 and 23,860.32 is: 35,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,415.59 : 135,632.51 = 23,860.32 : x
  2. Step 2: Convert to fraction form
    90,415.59/135,632.51 = 23,860.32/x
  3. Step 3: Cross multiply
    90,415.59x = 135,632.51 × 23,860.32
  4. Step 4: Simplify right side
    90,415.59x = 3,236,234,971.70
  5. Step 5: Solve for x
    x = 3,236,234,971.70/90,415.59
  6. Step 6: Final answer
    x = 35,792.89

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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.