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Finding the Fourth Proportional to 21,750.56, 32,626.56 and 13,336.64

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Solution

The fourth proportional to 21,750.56, 32,626.56 and 13,336.64 is: 20,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750.56 : 32,626.56 = 13,336.64 : x
  2. Step 2: Convert to fraction form
    21,750.56/32,626.56 = 13,336.64/x
  3. Step 3: Cross multiply
    21,750.56x = 32,626.56 × 13,336.64
  4. Step 4: Simplify right side
    21,750.56x = 435,128,685.16
  5. Step 5: Solve for x
    x = 435,128,685.16/21,750.56
  6. Step 6: Final answer
    x = 20,005.40

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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.