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Finding the Fourth Proportional to 57,480.90, 79,322.88 and 32,330.40

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Solution

The fourth proportional to 57,480.90, 79,322.88 and 32,330.40 is: 44,615.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,480.90 : 79,322.88 = 32,330.40 : x
  2. Step 2: Convert to fraction form
    57,480.90/79,322.88 = 32,330.40/x
  3. Step 3: Cross multiply
    57,480.90x = 79,322.88 × 32,330.40
  4. Step 4: Simplify right side
    57,480.90x = 2,564,540,439.55
  5. Step 5: Solve for x
    x = 2,564,540,439.55/57,480.90
  6. Step 6: Final answer
    x = 44,615.52

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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.