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Finding the Fourth Proportional to 10,865,287.80, 16,297,931.70 and 10,865,287.80

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Solution

The fourth proportional to 10,865,287.80, 16,297,931.70 and 10,865,287.80 is: 16,297,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865,287.80 : 16,297,931.70 = 10,865,287.80 : x
  2. Step 2: Convert to fraction form
    10,865,287.80/16,297,931.70 = 10,865,287.80/x
  3. Step 3: Cross multiply
    10,865,287.80x = 16,297,931.70 × 10,865,287.80
  4. Step 4: Simplify right side
    10,865,287.80x = 177,081,718,465,243.25
  5. Step 5: Solve for x
    x = 177,081,718,465,243.25/10,865,287.80
  6. Step 6: Final answer
    x = 16,297,931.70

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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.