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Finding the Fourth Proportional to 70,107.60, 96,748.96 and 38,276.72

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Solution

The fourth proportional to 70,107.60, 96,748.96 and 38,276.72 is: 52,822.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,107.60 : 96,748.96 = 38,276.72 : x
  2. Step 2: Convert to fraction form
    70,107.60/96,748.96 = 38,276.72/x
  3. Step 3: Cross multiply
    70,107.60x = 96,748.96 × 38,276.72
  4. Step 4: Simplify right side
    70,107.60x = 3,703,232,852.21
  5. Step 5: Solve for x
    x = 3,703,232,852.21/70,107.60
  6. Step 6: Final answer
    x = 52,822.13

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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.