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Finding the Fourth Proportional to 70,107.88, 96,746.34 and 38,276.20

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Solution

The fourth proportional to 70,107.88, 96,746.34 and 38,276.20 is: 52,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.88 : 96,746.34 = 38,276.20 : x
  2. Step 2: Convert to fraction form
    70,107.88/96,746.34 = 38,276.20/x
  3. Step 3: Cross multiply
    70,107.88x = 96,746.34 × 38,276.20
  4. Step 4: Simplify right side
    70,107.88x = 3,703,082,259.11
  5. Step 5: Solve for x
    x = 3,703,082,259.11/70,107.88
  6. Step 6: Final answer
    x = 52,819.77

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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.