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Finding the Fourth Proportional to 63,421.86, 87,522.81 and 38,266.50

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Solution

The fourth proportional to 63,421.86, 87,522.81 and 38,266.50 is: 52,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,421.86 : 87,522.81 = 38,266.50 : x
  2. Step 2: Convert to fraction form
    63,421.86/87,522.81 = 38,266.50/x
  3. Step 3: Cross multiply
    63,421.86x = 87,522.81 × 38,266.50
  4. Step 4: Simplify right side
    63,421.86x = 3,349,191,608.87
  5. Step 5: Solve for x
    x = 3,349,191,608.87/63,421.86
  6. Step 6: Final answer
    x = 52,808.16

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