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Finding the Fourth Proportional to 71,096.40, 98,128.44 and 48,489.30

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Solution

The fourth proportional to 71,096.40, 98,128.44 and 48,489.30 is: 66,925.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,096.40 : 98,128.44 = 48,489.30 : x
  2. Step 2: Convert to fraction form
    71,096.40/98,128.44 = 48,489.30/x
  3. Step 3: Cross multiply
    71,096.40x = 98,128.44 × 48,489.30
  4. Step 4: Simplify right side
    71,096.40x = 4,758,179,365.69
  5. Step 5: Solve for x
    x = 4,758,179,365.69/71,096.40
  6. Step 6: Final answer
    x = 66,925.74

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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.