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Finding the Fourth Proportional to 32,486.45, 48,723.53 and 13,779.77

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Solution

The fourth proportional to 32,486.45, 48,723.53 and 13,779.77 is: 20,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,486.45 : 48,723.53 = 13,779.77 : x
  2. Step 2: Convert to fraction form
    32,486.45/48,723.53 = 13,779.77/x
  3. Step 3: Cross multiply
    32,486.45x = 48,723.53 × 13,779.77
  4. Step 4: Simplify right side
    32,486.45x = 671,398,724.47
  5. Step 5: Solve for x
    x = 671,398,724.47/32,486.45
  6. Step 6: Final answer
    x = 20,667.04

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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.