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Finding the Fourth Proportional to 43,607.71, 65,411.81 and 15,528.85

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Solution

The fourth proportional to 43,607.71, 65,411.81 and 15,528.85 is: 23,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,607.71 : 65,411.81 = 15,528.85 : x
  2. Step 2: Convert to fraction form
    43,607.71/65,411.81 = 15,528.85/x
  3. Step 3: Cross multiply
    43,607.71x = 65,411.81 × 15,528.85
  4. Step 4: Simplify right side
    43,607.71x = 1,015,770,185.72
  5. Step 5: Solve for x
    x = 1,015,770,185.72/43,607.71
  6. Step 6: Final answer
    x = 23,293.36

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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.