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Finding the Fourth Proportional to 47,258.94, 70,888.42 and 13,976.42

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Solution

The fourth proportional to 47,258.94, 70,888.42 and 13,976.42 is: 20,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,258.94 : 70,888.42 = 13,976.42 : x
  2. Step 2: Convert to fraction form
    47,258.94/70,888.42 = 13,976.42/x
  3. Step 3: Cross multiply
    47,258.94x = 70,888.42 × 13,976.42
  4. Step 4: Simplify right side
    47,258.94x = 990,766,114.84
  5. Step 5: Solve for x
    x = 990,766,114.84/47,258.94
  6. Step 6: Final answer
    x = 20,964.63

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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.