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Finding the Fourth Proportional to 28,974,007.80, 43,461,011.70 and 28,974,007.80

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Solution

The fourth proportional to 28,974,007.80, 43,461,011.70 and 28,974,007.80 is: 43,461,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974,007.80 : 43,461,011.70 = 28,974,007.80 : x
  2. Step 2: Convert to fraction form
    28,974,007.80/43,461,011.70 = 28,974,007.80/x
  3. Step 3: Cross multiply
    28,974,007.80x = 43,461,011.70 × 28,974,007.80
  4. Step 4: Simplify right side
    28,974,007.80x = 1,259,239,691,991,691.50
  5. Step 5: Solve for x
    x = 1,259,239,691,991,691.50/28,974,007.80
  6. Step 6: Final answer
    x = 43,461,011.70

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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.