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Finding the Fourth Proportional to 5,672,787.78, 8,509,255.35 and 1,886,270.52

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Solution

The fourth proportional to 5,672,787.78, 8,509,255.35 and 1,886,270.52 is: 2,829,430.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,672,787.78 : 8,509,255.35 = 1,886,270.52 : x
  2. Step 2: Convert to fraction form
    5,672,787.78/8,509,255.35 = 1,886,270.52/x
  3. Step 3: Cross multiply
    5,672,787.78x = 8,509,255.35 × 1,886,270.52
  4. Step 4: Simplify right side
    5,672,787.78x = 16,050,757,513,857.28
  5. Step 5: Solve for x
    x = 16,050,757,513,857.28/5,672,787.78
  6. Step 6: Final answer
    x = 2,829,430.28

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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.