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Finding the Fourth Proportional to 28,086,798.60, 42,067,212.30 and 28,086,798.60

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Solution

The fourth proportional to 28,086,798.60, 42,067,212.30 and 28,086,798.60 is: 42,067,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086,798.60 : 42,067,212.30 = 28,086,798.60 : x
  2. Step 2: Convert to fraction form
    28,086,798.60/42,067,212.30 = 28,086,798.60/x
  3. Step 3: Cross multiply
    28,086,798.60x = 42,067,212.30 × 28,086,798.60
  4. Step 4: Simplify right side
    28,086,798.60x = 1,181,533,319,533,542.75
  5. Step 5: Solve for x
    x = 1,181,533,319,533,542.75/28,086,798.60
  6. Step 6: Final answer
    x = 42,067,212.30

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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.