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Finding the Fourth Proportional to 33,311.64, 45,970.08 and 18,407.64

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Solution

The fourth proportional to 33,311.64, 45,970.08 and 18,407.64 is: 25,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,311.64 : 45,970.08 = 18,407.64 : x
  2. Step 2: Convert to fraction form
    33,311.64/45,970.08 = 18,407.64/x
  3. Step 3: Cross multiply
    33,311.64x = 45,970.08 × 18,407.64
  4. Step 4: Simplify right side
    33,311.64x = 846,200,683.41
  5. Step 5: Solve for x
    x = 846,200,683.41/33,311.64
  6. Step 6: Final answer
    x = 25,402.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.