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Finding the Fourth Proportional to 66,401.40, 99,383.40 and 58,528.20

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Solution

The fourth proportional to 66,401.40, 99,383.40 and 58,528.20 is: 87,599.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,401.40 : 99,383.40 = 58,528.20 : x
  2. Step 2: Convert to fraction form
    66,401.40/99,383.40 = 58,528.20/x
  3. Step 3: Cross multiply
    66,401.40x = 99,383.40 × 58,528.20
  4. Step 4: Simplify right side
    66,401.40x = 5,816,731,511.88
  5. Step 5: Solve for x
    x = 5,816,731,511.88/66,401.40
  6. Step 6: Final answer
    x = 87,599.53

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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.