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Finding the Fourth Proportional to 70,089.92, 96,725.92 and 38,261.76

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Solution

The fourth proportional to 70,089.92, 96,725.92 and 38,261.76 is: 52,802.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,089.92 : 96,725.92 = 38,261.76 : x
  2. Step 2: Convert to fraction form
    70,089.92/96,725.92 = 38,261.76/x
  3. Step 3: Cross multiply
    70,089.92x = 96,725.92 × 38,261.76
  4. Step 4: Simplify right side
    70,089.92x = 3,700,903,936.82
  5. Step 5: Solve for x
    x = 3,700,903,936.82/70,089.92
  6. Step 6: Final answer
    x = 52,802.23

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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.