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Finding the Fourth Proportional to 66,125.55, 99,230.85 and 36,564.60

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Solution

The fourth proportional to 66,125.55, 99,230.85 and 36,564.60 is: 54,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,125.55 : 99,230.85 = 36,564.60 : x
  2. Step 2: Convert to fraction form
    66,125.55/99,230.85 = 36,564.60/x
  3. Step 3: Cross multiply
    66,125.55x = 99,230.85 × 36,564.60
  4. Step 4: Simplify right side
    66,125.55x = 3,628,336,337.91
  5. Step 5: Solve for x
    x = 3,628,336,337.91/66,125.55
  6. Step 6: Final answer
    x = 54,870.41

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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.