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Finding the Fourth Proportional to 56,187.91, 84,253.64 and 18,734.72

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Solution

The fourth proportional to 56,187.91, 84,253.64 and 18,734.72 is: 28,092.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,187.91 : 84,253.64 = 18,734.72 : x
  2. Step 2: Convert to fraction form
    56,187.91/84,253.64 = 18,734.72/x
  3. Step 3: Cross multiply
    56,187.91x = 84,253.64 × 18,734.72
  4. Step 4: Simplify right side
    56,187.91x = 1,578,468,354.38
  5. Step 5: Solve for x
    x = 1,578,468,354.38/56,187.91
  6. Step 6: Final answer
    x = 28,092.67

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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.