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Finding the Fourth Proportional to 28,629,363.60, 42,944,045.40 and 28,629,363.60

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Solution

The fourth proportional to 28,629,363.60, 42,944,045.40 and 28,629,363.60 is: 42,944,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629,363.60 : 42,944,045.40 = 28,629,363.60 : x
  2. Step 2: Convert to fraction form
    28,629,363.60/42,944,045.40 = 28,629,363.60/x
  3. Step 3: Cross multiply
    28,629,363.60x = 42,944,045.40 × 28,629,363.60
  4. Step 4: Simplify right side
    28,629,363.60x = 1,229,460,690,211,507.50
  5. Step 5: Solve for x
    x = 1,229,460,690,211,507.50/28,629,363.60
  6. Step 6: Final answer
    x = 42,944,045.40

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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.