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Finding the Fourth Proportional to 7,017.16, 10,521.30 and 3,941.32

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Solution

The fourth proportional to 7,017.16, 10,521.30 and 3,941.32 is: 5,909.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.16 : 10,521.30 = 3,941.32 : x
  2. Step 2: Convert to fraction form
    7,017.16/10,521.30 = 3,941.32/x
  3. Step 3: Cross multiply
    7,017.16x = 10,521.30 × 3,941.32
  4. Step 4: Simplify right side
    7,017.16x = 41,467,810.12
  5. Step 5: Solve for x
    x = 41,467,810.12/7,017.16
  6. Step 6: Final answer
    x = 5,909.49

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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.