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Finding the Fourth Proportional to 7,661.59, 11,495.64 and 4,330.29

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Solution

The fourth proportional to 7,661.59, 11,495.64 and 4,330.29 is: 6,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.59 : 11,495.64 = 4,330.29 : x
  2. Step 2: Convert to fraction form
    7,661.59/11,495.64 = 4,330.29/x
  3. Step 3: Cross multiply
    7,661.59x = 11,495.64 × 4,330.29
  4. Step 4: Simplify right side
    7,661.59x = 49,779,454.94
  5. Step 5: Solve for x
    x = 49,779,454.94/7,661.59
  6. Step 6: Final answer
    x = 6,497.27

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1.5x scale

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.