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Finding the Fourth Proportional to 61,745.66, 85,210.62 and 37,858.58

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Solution

The fourth proportional to 61,745.66, 85,210.62 and 37,858.58 is: 52,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.66 : 85,210.62 = 37,858.58 : x
  2. Step 2: Convert to fraction form
    61,745.66/85,210.62 = 37,858.58/x
  3. Step 3: Cross multiply
    61,745.66x = 85,210.62 × 37,858.58
  4. Step 4: Simplify right side
    61,745.66x = 3,225,953,074.12
  5. Step 5: Solve for x
    x = 3,225,953,074.12/61,745.66
  6. Step 6: Final answer
    x = 52,245.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.