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Finding the Fourth Proportional to 6,615.56, 9,130.02 and 5,433.32

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Solution

The fourth proportional to 6,615.56, 9,130.02 and 5,433.32 is: 7,498.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.56 : 9,130.02 = 5,433.32 : x
  2. Step 2: Convert to fraction form
    6,615.56/9,130.02 = 5,433.32/x
  3. Step 3: Cross multiply
    6,615.56x = 9,130.02 × 5,433.32
  4. Step 4: Simplify right side
    6,615.56x = 49,606,320.27
  5. Step 5: Solve for x
    x = 49,606,320.27/6,615.56
  6. Step 6: Final answer
    x = 7,498.43

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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.