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Finding the Fourth Proportional to 70,856.32, 97,822.39 and 47,015.32

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Solution

The fourth proportional to 70,856.32, 97,822.39 and 47,015.32 is: 64,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,856.32 : 97,822.39 = 47,015.32 : x
  2. Step 2: Convert to fraction form
    70,856.32/97,822.39 = 47,015.32/x
  3. Step 3: Cross multiply
    70,856.32x = 97,822.39 × 47,015.32
  4. Step 4: Simplify right side
    70,856.32x = 4,599,150,606.92
  5. Step 5: Solve for x
    x = 4,599,150,606.92/70,856.32
  6. Step 6: Final answer
    x = 64,908.12

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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.