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Finding the Fourth Proportional to 43,657.96, 65,487.24 and 19,960.60

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Solution

The fourth proportional to 43,657.96, 65,487.24 and 19,960.60 is: 29,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,657.96 : 65,487.24 = 19,960.60 : x
  2. Step 2: Convert to fraction form
    43,657.96/65,487.24 = 19,960.60/x
  3. Step 3: Cross multiply
    43,657.96x = 65,487.24 × 19,960.60
  4. Step 4: Simplify right side
    43,657.96x = 1,307,164,602.74
  5. Step 5: Solve for x
    x = 1,307,164,602.74/43,657.96
  6. Step 6: Final answer
    x = 29,941.04

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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.