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Finding the Fourth Proportional to 37,416.70, 51,643.91 and 21,510.39

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Solution

The fourth proportional to 37,416.70, 51,643.91 and 21,510.39 is: 29,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,416.70 : 51,643.91 = 21,510.39 : x
  2. Step 2: Convert to fraction form
    37,416.70/51,643.91 = 21,510.39/x
  3. Step 3: Cross multiply
    37,416.70x = 51,643.91 × 21,510.39
  4. Step 4: Simplify right side
    37,416.70x = 1,110,880,892.67
  5. Step 5: Solve for x
    x = 1,110,880,892.67/37,416.70
  6. Step 6: Final answer
    x = 29,689.44

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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.