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Finding the Fourth Proportional to 11,411.76, 17,078.70 and 9,564.96

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Solution

The fourth proportional to 11,411.76, 17,078.70 and 9,564.96 is: 14,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,411.76 : 17,078.70 = 9,564.96 : x
  2. Step 2: Convert to fraction form
    11,411.76/17,078.70 = 9,564.96/x
  3. Step 3: Cross multiply
    11,411.76x = 17,078.70 × 9,564.96
  4. Step 4: Simplify right side
    11,411.76x = 163,357,082.35
  5. Step 5: Solve for x
    x = 163,357,082.35/11,411.76
  6. Step 6: Final answer
    x = 14,314.80

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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.