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Finding the Fourth Proportional to 58,175.82, 87,271.56 and 18,723.42

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Solution

The fourth proportional to 58,175.82, 87,271.56 and 18,723.42 is: 28,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,175.82 : 87,271.56 = 18,723.42 : x
  2. Step 2: Convert to fraction form
    58,175.82/87,271.56 = 18,723.42/x
  3. Step 3: Cross multiply
    58,175.82x = 87,271.56 × 18,723.42
  4. Step 4: Simplify right side
    58,175.82x = 1,634,022,071.94
  5. Step 5: Solve for x
    x = 1,634,022,071.94/58,175.82
  6. Step 6: Final answer
    x = 28,087.65

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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.