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Finding the Fourth Proportional to 11,017,223.80, 15,440,056.55 and 11,017,223.80

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Solution

The fourth proportional to 11,017,223.80, 15,440,056.55 and 11,017,223.80 is: 15,440,056.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,017,223.80 : 15,440,056.55 = 11,017,223.80 : x
  2. Step 2: Convert to fraction form
    11,017,223.80/15,440,056.55 = 11,017,223.80/x
  3. Step 3: Cross multiply
    11,017,223.80x = 15,440,056.55 × 11,017,223.80
  4. Step 4: Simplify right side
    11,017,223.80x = 170,106,558,496,005.91
  5. Step 5: Solve for x
    x = 170,106,558,496,005.91/11,017,223.80
  6. Step 6: Final answer
    x = 15,440,056.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.