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Finding the Fourth Proportional to 11,232.64, 16,838.76 and 7,060

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Solution

The fourth proportional to 11,232.64, 16,838.76 and 7,060 is: 10,583.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,232.64 : 16,838.76 = 7,060 : x
  2. Step 2: Convert to fraction form
    11,232.64/16,838.76 = 7,060/x
  3. Step 3: Cross multiply
    11,232.64x = 16,838.76 × 7,060
  4. Step 4: Simplify right side
    11,232.64x = 118,881,645.60
  5. Step 5: Solve for x
    x = 118,881,645.60/11,232.64
  6. Step 6: Final answer
    x = 10,583.59

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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.