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Finding the Fourth Proportional to 70,043.52, 96,659.88 and 38,212.40

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Solution

The fourth proportional to 70,043.52, 96,659.88 and 38,212.40 is: 52,733.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,043.52 : 96,659.88 = 38,212.40 : x
  2. Step 2: Convert to fraction form
    70,043.52/96,659.88 = 38,212.40/x
  3. Step 3: Cross multiply
    70,043.52x = 96,659.88 × 38,212.40
  4. Step 4: Simplify right side
    70,043.52x = 3,693,605,515.21
  5. Step 5: Solve for x
    x = 3,693,605,515.21/70,043.52
  6. Step 6: Final answer
    x = 52,733.01

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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.