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Finding the Fourth Proportional to 32,511.51, 48,748.77 and 12,779.28

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Solution

The fourth proportional to 32,511.51, 48,748.77 and 12,779.28 is: 19,161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,511.51 : 48,748.77 = 12,779.28 : x
  2. Step 2: Convert to fraction form
    32,511.51/48,748.77 = 12,779.28/x
  3. Step 3: Cross multiply
    32,511.51x = 48,748.77 × 12,779.28
  4. Step 4: Simplify right side
    32,511.51x = 622,974,181.49
  5. Step 5: Solve for x
    x = 622,974,181.49/32,511.51
  6. Step 6: Final answer
    x = 19,161.65

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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.