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Finding the Fourth Proportional to 63,115.82, 94,670.48 and 18,742.94

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Solution

The fourth proportional to 63,115.82, 94,670.48 and 18,742.94 is: 28,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,115.82 : 94,670.48 = 18,742.94 : x
  2. Step 2: Convert to fraction form
    63,115.82/94,670.48 = 18,742.94/x
  3. Step 3: Cross multiply
    63,115.82x = 94,670.48 × 18,742.94
  4. Step 4: Simplify right side
    63,115.82x = 1,774,402,653.06
  5. Step 5: Solve for x
    x = 1,774,402,653.06/63,115.82
  6. Step 6: Final answer
    x = 28,113.44

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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.