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Finding the Fourth Proportional to 32,203.60, 48,312.60 and 12,480.40

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Solution

The fourth proportional to 32,203.60, 48,312.60 and 12,480.40 is: 18,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,203.60 : 48,312.60 = 12,480.40 : x
  2. Step 2: Convert to fraction form
    32,203.60/48,312.60 = 12,480.40/x
  3. Step 3: Cross multiply
    32,203.60x = 48,312.60 × 12,480.40
  4. Step 4: Simplify right side
    32,203.60x = 602,960,573.04
  5. Step 5: Solve for x
    x = 602,960,573.04/32,203.60
  6. Step 6: Final answer
    x = 18,723.39

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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.