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Finding the Fourth Proportional to 70,273.12, 96,978.08 and 38,442.24

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Solution

The fourth proportional to 70,273.12, 96,978.08 and 38,442.24 is: 53,050.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,273.12 : 96,978.08 = 38,442.24 : x
  2. Step 2: Convert to fraction form
    70,273.12/96,978.08 = 38,442.24/x
  3. Step 3: Cross multiply
    70,273.12x = 96,978.08 × 38,442.24
  4. Step 4: Simplify right side
    70,273.12x = 3,728,054,626.10
  5. Step 5: Solve for x
    x = 3,728,054,626.10/70,273.12
  6. Step 6: Final answer
    x = 53,050.93

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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.