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Finding the Fourth Proportional to 6,628.56, 9,923.40 and 4,647.32

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Solution

The fourth proportional to 6,628.56, 9,923.40 and 4,647.32 is: 6,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,628.56 : 9,923.40 = 4,647.32 : x
  2. Step 2: Convert to fraction form
    6,628.56/9,923.40 = 4,647.32/x
  3. Step 3: Cross multiply
    6,628.56x = 9,923.40 × 4,647.32
  4. Step 4: Simplify right side
    6,628.56x = 46,117,215.29
  5. Step 5: Solve for x
    x = 46,117,215.29/6,628.56
  6. Step 6: Final answer
    x = 6,957.35

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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.