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Finding the Fourth Proportional to 22,602,605.16, 31,191,375.84 and 12,289,328.16

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Solution

The fourth proportional to 22,602,605.16, 31,191,375.84 and 12,289,328.16 is: 16,959,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,602,605.16 : 31,191,375.84 = 12,289,328.16 : x
  2. Step 2: Convert to fraction form
    22,602,605.16/31,191,375.84 = 12,289,328.16/x
  3. Step 3: Cross multiply
    22,602,605.16x = 31,191,375.84 × 12,289,328.16
  4. Step 4: Simplify right side
    22,602,605.16x = 383,321,053,459,655.69
  5. Step 5: Solve for x
    x = 383,321,053,459,655.69/22,602,605.16
  6. Step 6: Final answer
    x = 16,959,153.63

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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.