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Finding the Fourth Proportional to 9,671,964.62, 13,347,311.08 and 5,320,957.54

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Solution

The fourth proportional to 9,671,964.62, 13,347,311.08 and 5,320,957.54 is: 7,342,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,671,964.62 : 13,347,311.08 = 5,320,957.54 : x
  2. Step 2: Convert to fraction form
    9,671,964.62/13,347,311.08 = 5,320,957.54/x
  3. Step 3: Cross multiply
    9,671,964.62x = 13,347,311.08 × 5,320,957.54
  4. Step 4: Simplify right side
    9,671,964.62x = 71,020,475,529,851.55
  5. Step 5: Solve for x
    x = 71,020,475,529,851.55/9,671,964.62
  6. Step 6: Final answer
    x = 7,342,921.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.