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Finding the Fourth Proportional to 28,670,205.70, 43,005,308.55 and 28,670,205.70

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Solution

The fourth proportional to 28,670,205.70, 43,005,308.55 and 28,670,205.70 is: 43,005,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,670,205.70 : 43,005,308.55 = 28,670,205.70 : x
  2. Step 2: Convert to fraction form
    28,670,205.70/43,005,308.55 = 28,670,205.70/x
  3. Step 3: Cross multiply
    28,670,205.70x = 43,005,308.55 × 28,670,205.70
  4. Step 4: Simplify right side
    28,670,205.70x = 1,232,971,042,320,468.50
  5. Step 5: Solve for x
    x = 1,232,971,042,320,468.50/28,670,205.70
  6. Step 6: Final answer
    x = 43,005,308.55

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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.