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Finding the Fourth Proportional to 32,689.90, 48,999.75 and 12,941.02

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Solution

The fourth proportional to 32,689.90, 48,999.75 and 12,941.02 is: 19,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,689.90 : 48,999.75 = 12,941.02 : x
  2. Step 2: Convert to fraction form
    32,689.90/48,999.75 = 12,941.02/x
  3. Step 3: Cross multiply
    32,689.90x = 48,999.75 × 12,941.02
  4. Step 4: Simplify right side
    32,689.90x = 634,106,744.75
  5. Step 5: Solve for x
    x = 634,106,744.75/32,689.90
  6. Step 6: Final answer
    x = 19,397.63

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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.