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Finding the Fourth Proportional to 7,663,579.52, 11,495,368.35 and 5,260,137.60

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Solution

The fourth proportional to 7,663,579.52, 11,495,368.35 and 5,260,137.60 is: 7,890,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,663,579.52 : 11,495,368.35 = 5,260,137.60 : x
  2. Step 2: Convert to fraction form
    7,663,579.52/11,495,368.35 = 5,260,137.60/x
  3. Step 3: Cross multiply
    7,663,579.52x = 11,495,368.35 × 5,260,137.60
  4. Step 4: Simplify right side
    7,663,579.52x = 60,467,219,283,684.95
  5. Step 5: Solve for x
    x = 60,467,219,283,684.95/7,663,579.52
  6. Step 6: Final answer
    x = 7,890,205.77

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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.