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Finding the Fourth Proportional to 31,972,392.80, 47,903,476.80 and 14,898,046.40

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Solution

The fourth proportional to 31,972,392.80, 47,903,476.80 and 14,898,046.40 is: 22,321,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,972,392.80 : 47,903,476.80 = 14,898,046.40 : x
  2. Step 2: Convert to fraction form
    31,972,392.80/47,903,476.80 = 14,898,046.40/x
  3. Step 3: Cross multiply
    31,972,392.80x = 47,903,476.80 × 14,898,046.40
  4. Step 4: Simplify right side
    31,972,392.80x = 713,668,220,087,723.50
  5. Step 5: Solve for x
    x = 713,668,220,087,723.50/31,972,392.80
  6. Step 6: Final answer
    x = 22,321,389.10

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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.