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Finding the Fourth Proportional to 89,017.80, 133,526.74 and 36,405.88

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Solution

The fourth proportional to 89,017.80, 133,526.74 and 36,405.88 is: 54,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,017.80 : 133,526.74 = 36,405.88 : x
  2. Step 2: Convert to fraction form
    89,017.80/133,526.74 = 36,405.88/x
  3. Step 3: Cross multiply
    89,017.80x = 133,526.74 × 36,405.88
  4. Step 4: Simplify right side
    89,017.80x = 4,861,158,473.23
  5. Step 5: Solve for x
    x = 4,861,158,473.23/89,017.80
  6. Step 6: Final answer
    x = 54,608.84

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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.