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Finding the Fourth Proportional to 32,364.96, 48,470.80 and 20,642.64

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Solution

The fourth proportional to 32,364.96, 48,470.80 and 20,642.64 is: 30,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,364.96 : 48,470.80 = 20,642.64 : x
  2. Step 2: Convert to fraction form
    32,364.96/48,470.80 = 20,642.64/x
  3. Step 3: Cross multiply
    32,364.96x = 48,470.80 × 20,642.64
  4. Step 4: Simplify right side
    32,364.96x = 1,000,565,274.91
  5. Step 5: Solve for x
    x = 1,000,565,274.91/32,364.96
  6. Step 6: Final answer
    x = 30,915.08

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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.