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Finding the Fourth Proportional to 14,957,882.55, 20,641,883.40 and 8,082,364.59

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Solution

The fourth proportional to 14,957,882.55, 20,641,883.40 and 8,082,364.59 is: 11,153,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,957,882.55 : 20,641,883.40 = 8,082,364.59 : x
  2. Step 2: Convert to fraction form
    14,957,882.55/20,641,883.40 = 8,082,364.59/x
  3. Step 3: Cross multiply
    14,957,882.55x = 20,641,883.40 × 8,082,364.59
  4. Step 4: Simplify right side
    14,957,882.55x = 166,835,227,463,068.78
  5. Step 5: Solve for x
    x = 166,835,227,463,068.78/14,957,882.55
  6. Step 6: Final answer
    x = 11,153,666.10

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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.