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Finding the Fourth Proportional to 22,975,560.62, 31,710,978.53 and 13,688,571.06

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Solution

The fourth proportional to 22,975,560.62, 31,710,978.53 and 13,688,571.06 is: 18,893,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,975,560.62 : 31,710,978.53 = 13,688,571.06 : x
  2. Step 2: Convert to fraction form
    22,975,560.62/31,710,978.53 = 13,688,571.06/x
  3. Step 3: Cross multiply
    22,975,560.62x = 31,710,978.53 × 13,688,571.06
  4. Step 4: Simplify right side
    22,975,560.62x = 434,077,982,990,039.38
  5. Step 5: Solve for x
    x = 434,077,982,990,039.38/22,975,560.62
  6. Step 6: Final answer
    x = 18,893,031.17

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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.