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Finding the Fourth Proportional to 7,898.50, 11,840.46 and 2,964.79

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Solution

The fourth proportional to 7,898.50, 11,840.46 and 2,964.79 is: 4,444.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.50 : 11,840.46 = 2,964.79 : x
  2. Step 2: Convert to fraction form
    7,898.50/11,840.46 = 2,964.79/x
  3. Step 3: Cross multiply
    7,898.50x = 11,840.46 × 2,964.79
  4. Step 4: Simplify right side
    7,898.50x = 35,104,477.40
  5. Step 5: Solve for x
    x = 35,104,477.40/7,898.50
  6. Step 6: Final answer
    x = 4,444.45

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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.