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Finding the Fourth Proportional to 12,604.56, 18,904.76 and 4,705.00

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Solution

The fourth proportional to 12,604.56, 18,904.76 and 4,705.00 is: 7,056.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.56 : 18,904.76 = 4,705.00 : x
  2. Step 2: Convert to fraction form
    12,604.56/18,904.76 = 4,705.00/x
  3. Step 3: Cross multiply
    12,604.56x = 18,904.76 × 4,705.00
  4. Step 4: Simplify right side
    12,604.56x = 88,946,842.66
  5. Step 5: Solve for x
    x = 88,946,842.66/12,604.56
  6. Step 6: Final answer
    x = 7,056.72

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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.