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Finding the Fourth Proportional to 70,106.83, 96,749.72 and 38,278.15

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Solution

The fourth proportional to 70,106.83, 96,749.72 and 38,278.15 is: 52,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,106.83 : 96,749.72 = 38,278.15 : x
  2. Step 2: Convert to fraction form
    70,106.83/96,749.72 = 38,278.15/x
  3. Step 3: Cross multiply
    70,106.83x = 96,749.72 × 38,278.15
  4. Step 4: Simplify right side
    70,106.83x = 3,703,400,294.62
  5. Step 5: Solve for x
    x = 3,703,400,294.62/70,106.83
  6. Step 6: Final answer
    x = 52,825.10

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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.