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Finding the Fourth Proportional to 19,554,811.90, 27,433,423.70 and 19,554,811.90

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Solution

The fourth proportional to 19,554,811.90, 27,433,423.70 and 19,554,811.90 is: 27,433,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,554,811.90 : 27,433,423.70 = 19,554,811.90 : x
  2. Step 2: Convert to fraction form
    19,554,811.90/27,433,423.70 = 19,554,811.90/x
  3. Step 3: Cross multiply
    19,554,811.90x = 27,433,423.70 × 19,554,811.90
  4. Step 4: Simplify right side
    19,554,811.90x = 536,455,440,226,502
  5. Step 5: Solve for x
    x = 536,455,440,226,502/19,554,811.90
  6. Step 6: Final answer
    x = 27,433,423.70

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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.