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Finding the Fourth Proportional to 43,685.50, 65,528.28 and 10,853.50

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Solution

The fourth proportional to 43,685.50, 65,528.28 and 10,853.50 is: 16,280.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,685.50 : 65,528.28 = 10,853.50 : x
  2. Step 2: Convert to fraction form
    43,685.50/65,528.28 = 10,853.50/x
  3. Step 3: Cross multiply
    43,685.50x = 65,528.28 × 10,853.50
  4. Step 4: Simplify right side
    43,685.50x = 711,211,186.98
  5. Step 5: Solve for x
    x = 711,211,186.98/43,685.50
  6. Step 6: Final answer
    x = 16,280.26

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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.