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Finding the Fourth Proportional to 70,235.76, 96,925.44 and 40,019.76

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Solution

The fourth proportional to 70,235.76, 96,925.44 and 40,019.76 is: 55,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,235.76 : 96,925.44 = 40,019.76 : x
  2. Step 2: Convert to fraction form
    70,235.76/96,925.44 = 40,019.76/x
  3. Step 3: Cross multiply
    70,235.76x = 96,925.44 × 40,019.76
  4. Step 4: Simplify right side
    70,235.76x = 3,878,932,846.69
  5. Step 5: Solve for x
    x = 3,878,932,846.69/70,235.76
  6. Step 6: Final answer
    x = 55,227.32

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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.