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Finding the Fourth Proportional to 6,598.39, 9,889.21 and 3,312.36

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Solution

The fourth proportional to 6,598.39, 9,889.21 and 3,312.36 is: 4,964.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,598.39 : 9,889.21 = 3,312.36 : x
  2. Step 2: Convert to fraction form
    6,598.39/9,889.21 = 3,312.36/x
  3. Step 3: Cross multiply
    6,598.39x = 9,889.21 × 3,312.36
  4. Step 4: Simplify right side
    6,598.39x = 32,756,623.64
  5. Step 5: Solve for x
    x = 32,756,623.64/6,598.39
  6. Step 6: Final answer
    x = 4,964.34

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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.