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Finding the Fourth Proportional to 70,365.92, 105,557.58 and 22,985.78

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Solution

The fourth proportional to 70,365.92, 105,557.58 and 22,985.78 is: 34,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,365.92 : 105,557.58 = 22,985.78 : x
  2. Step 2: Convert to fraction form
    70,365.92/105,557.58 = 22,985.78/x
  3. Step 3: Cross multiply
    70,365.92x = 105,557.58 × 22,985.78
  4. Step 4: Simplify right side
    70,365.92x = 2,426,322,783.42
  5. Step 5: Solve for x
    x = 2,426,322,783.42/70,365.92
  6. Step 6: Final answer
    x = 34,481.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.