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Finding the Fourth Proportional to 16,683,668.70, 23,390,728.50 and 16,683,668.70

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Solution

The fourth proportional to 16,683,668.70, 23,390,728.50 and 16,683,668.70 is: 23,390,728.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,683,668.70 : 23,390,728.50 = 16,683,668.70 : x
  2. Step 2: Convert to fraction form
    16,683,668.70/23,390,728.50 = 16,683,668.70/x
  3. Step 3: Cross multiply
    16,683,668.70x = 23,390,728.50 × 16,683,668.70
  4. Step 4: Simplify right side
    16,683,668.70x = 390,243,164,945,647.94
  5. Step 5: Solve for x
    x = 390,243,164,945,647.94/16,683,668.70
  6. Step 6: Final answer
    x = 23,390,728.50

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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.