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Finding the Fourth Proportional to 6,530.64, 9,797.40 and 3,066

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Solution

The fourth proportional to 6,530.64, 9,797.40 and 3,066 is: 4,599.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,530.64 : 9,797.40 = 3,066 : x
  2. Step 2: Convert to fraction form
    6,530.64/9,797.40 = 3,066/x
  3. Step 3: Cross multiply
    6,530.64x = 9,797.40 × 3,066
  4. Step 4: Simplify right side
    6,530.64x = 30,038,828.40
  5. Step 5: Solve for x
    x = 30,038,828.40/6,530.64
  6. Step 6: Final answer
    x = 4,599.68

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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.