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Finding the Fourth Proportional to 19,683,489.70, 29,525,234.55 and 19,152,048.70

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Solution

The fourth proportional to 19,683,489.70, 29,525,234.55 and 19,152,048.70 is: 28,728,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683,489.70 : 29,525,234.55 = 19,152,048.70 : x
  2. Step 2: Convert to fraction form
    19,683,489.70/29,525,234.55 = 19,152,048.70/x
  3. Step 3: Cross multiply
    19,683,489.70x = 29,525,234.55 × 19,152,048.70
  4. Step 4: Simplify right side
    19,683,489.70x = 565,468,729,980,522.62
  5. Step 5: Solve for x
    x = 565,468,729,980,522.62/19,683,489.70
  6. Step 6: Final answer
    x = 28,728,073.05

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1.5x scale

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.