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Finding the Fourth Proportional to 10,653,750.57, 15,978,876.26 and 4,586,848.95

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Solution

The fourth proportional to 10,653,750.57, 15,978,876.26 and 4,586,848.95 is: 6,879,520.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653,750.57 : 15,978,876.26 = 4,586,848.95 : x
  2. Step 2: Convert to fraction form
    10,653,750.57/15,978,876.26 = 4,586,848.95/x
  3. Step 3: Cross multiply
    10,653,750.57x = 15,978,876.26 × 4,586,848.95
  4. Step 4: Simplify right side
    10,653,750.57x = 73,292,691,772,426.69
  5. Step 5: Solve for x
    x = 73,292,691,772,426.69/10,653,750.57
  6. Step 6: Final answer
    x = 6,879,520.15

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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.