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Finding the Fourth Proportional to 6,605.55, 9,108.86 and 4,615.38

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Solution

The fourth proportional to 6,605.55, 9,108.86 and 4,615.38 is: 6,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.55 : 9,108.86 = 4,615.38 : x
  2. Step 2: Convert to fraction form
    6,605.55/9,108.86 = 4,615.38/x
  3. Step 3: Cross multiply
    6,605.55x = 9,108.86 × 4,615.38
  4. Step 4: Simplify right side
    6,605.55x = 42,040,827.19
  5. Step 5: Solve for x
    x = 42,040,827.19/6,605.55
  6. Step 6: Final answer
    x = 6,364.47

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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.