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Finding the Fourth Proportional to 70,990.61, 106,445.97 and 23,580.32

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Solution

The fourth proportional to 70,990.61, 106,445.97 and 23,580.32 is: 35,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,990.61 : 106,445.97 = 23,580.32 : x
  2. Step 2: Convert to fraction form
    70,990.61/106,445.97 = 23,580.32/x
  3. Step 3: Cross multiply
    70,990.61x = 106,445.97 × 23,580.32
  4. Step 4: Simplify right side
    70,990.61x = 2,510,029,503.08
  5. Step 5: Solve for x
    x = 2,510,029,503.08/70,990.61
  6. Step 6: Final answer
    x = 35,357.21

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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.