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Finding the Fourth Proportional to 66,658.80, 99,858.60 and 37,023.60

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Solution

The fourth proportional to 66,658.80, 99,858.60 and 37,023.60 is: 55,463.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,658.80 : 99,858.60 = 37,023.60 : x
  2. Step 2: Convert to fraction form
    66,658.80/99,858.60 = 37,023.60/x
  3. Step 3: Cross multiply
    66,658.80x = 99,858.60 × 37,023.60
  4. Step 4: Simplify right side
    66,658.80x = 3,697,124,862.96
  5. Step 5: Solve for x
    x = 3,697,124,862.96/66,658.80
  6. Step 6: Final answer
    x = 55,463.42

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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.