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Finding the Fourth Proportional to 18,337,369.98, 27,506,968.65 and 6,978,698.94

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Solution

The fourth proportional to 18,337,369.98, 27,506,968.65 and 6,978,698.94 is: 10,468,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,337,369.98 : 27,506,968.65 = 6,978,698.94 : x
  2. Step 2: Convert to fraction form
    18,337,369.98/27,506,968.65 = 6,978,698.94/x
  3. Step 3: Cross multiply
    18,337,369.98x = 27,506,968.65 × 6,978,698.94
  4. Step 4: Simplify right side
    18,337,369.98x = 191,962,852,960,368.22
  5. Step 5: Solve for x
    x = 191,962,852,960,368.22/18,337,369.98
  6. Step 6: Final answer
    x = 10,468,396.13

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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.