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Finding the Fourth Proportional to 70,219.26, 96,904.08 and 38,391.12

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Solution

The fourth proportional to 70,219.26, 96,904.08 and 38,391.12 is: 52,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,219.26 : 96,904.08 = 38,391.12 : x
  2. Step 2: Convert to fraction form
    70,219.26/96,904.08 = 38,391.12/x
  3. Step 3: Cross multiply
    70,219.26x = 96,904.08 × 38,391.12
  4. Step 4: Simplify right side
    70,219.26x = 3,720,256,163.77
  5. Step 5: Solve for x
    x = 3,720,256,163.77/70,219.26
  6. Step 6: Final answer
    x = 52,980.57

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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.