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Finding the Fourth Proportional to 31,594.80, 43,606.56 and 18,848.88

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Solution

The fourth proportional to 31,594.80, 43,606.56 and 18,848.88 is: 26,014.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,594.80 : 43,606.56 = 18,848.88 : x
  2. Step 2: Convert to fraction form
    31,594.80/43,606.56 = 18,848.88/x
  3. Step 3: Cross multiply
    31,594.80x = 43,606.56 × 18,848.88
  4. Step 4: Simplify right side
    31,594.80x = 821,934,816.65
  5. Step 5: Solve for x
    x = 821,934,816.65/31,594.80
  6. Step 6: Final answer
    x = 26,014.88

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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.