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Finding the Fourth Proportional to 32,492.40, 48,702.60 and 12,764.40

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Solution

The fourth proportional to 32,492.40, 48,702.60 and 12,764.40 is: 19,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,492.40 : 48,702.60 = 12,764.40 : x
  2. Step 2: Convert to fraction form
    32,492.40/48,702.60 = 12,764.40/x
  3. Step 3: Cross multiply
    32,492.40x = 48,702.60 × 12,764.40
  4. Step 4: Simplify right side
    32,492.40x = 621,659,467.44
  5. Step 5: Solve for x
    x = 621,659,467.44/32,492.40
  6. Step 6: Final answer
    x = 19,132.46

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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.