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Finding the Fourth Proportional to 27,889,563.60, 41,834,345.40 and 19,280,219.40

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Solution

The fourth proportional to 27,889,563.60, 41,834,345.40 and 19,280,219.40 is: 28,920,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889,563.60 : 41,834,345.40 = 19,280,219.40 : x
  2. Step 2: Convert to fraction form
    27,889,563.60/41,834,345.40 = 19,280,219.40/x
  3. Step 3: Cross multiply
    27,889,563.60x = 41,834,345.40 × 19,280,219.40
  4. Step 4: Simplify right side
    27,889,563.60x = 806,575,357,767,380.62
  5. Step 5: Solve for x
    x = 806,575,357,767,380.62/27,889,563.60
  6. Step 6: Final answer
    x = 28,920,329.10

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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.