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Finding the Fourth Proportional to 15,002.64, 22,487.76 and 7,409.16

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Solution

The fourth proportional to 15,002.64, 22,487.76 and 7,409.16 is: 11,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.64 : 22,487.76 = 7,409.16 : x
  2. Step 2: Convert to fraction form
    15,002.64/22,487.76 = 7,409.16/x
  3. Step 3: Cross multiply
    15,002.64x = 22,487.76 × 7,409.16
  4. Step 4: Simplify right side
    15,002.64x = 166,615,411.88
  5. Step 5: Solve for x
    x = 166,615,411.88/15,002.64
  6. Step 6: Final answer
    x = 11,105.74

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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.