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Finding the Fourth Proportional to 7,753.02, 10,699.02 and 4,216.20

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Solution

The fourth proportional to 7,753.02, 10,699.02 and 4,216.20 is: 5,818.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.02 : 10,699.02 = 4,216.20 : x
  2. Step 2: Convert to fraction form
    7,753.02/10,699.02 = 4,216.20/x
  3. Step 3: Cross multiply
    7,753.02x = 10,699.02 × 4,216.20
  4. Step 4: Simplify right side
    7,753.02x = 45,109,208.12
  5. Step 5: Solve for x
    x = 45,109,208.12/7,753.02
  6. Step 6: Final answer
    x = 5,818.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.