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Finding the Fourth Proportional to 5,653.32, 8,473.12 and 4,989

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Solution

The fourth proportional to 5,653.32, 8,473.12 and 4,989 is: 7,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.32 : 8,473.12 = 4,989 : x
  2. Step 2: Convert to fraction form
    5,653.32/8,473.12 = 4,989/x
  3. Step 3: Cross multiply
    5,653.32x = 8,473.12 × 4,989
  4. Step 4: Simplify right side
    5,653.32x = 42,272,395.68
  5. Step 5: Solve for x
    x = 42,272,395.68/5,653.32
  6. Step 6: Final answer
    x = 7,477.45

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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.