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Finding the Fourth Proportional to 6,998,975.72, 9,658,586.41 and 3,779,711.72

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Solution

The fourth proportional to 6,998,975.72, 9,658,586.41 and 3,779,711.72 is: 5,216,002.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998,975.72 : 9,658,586.41 = 3,779,711.72 : x
  2. Step 2: Convert to fraction form
    6,998,975.72/9,658,586.41 = 3,779,711.72/x
  3. Step 3: Cross multiply
    6,998,975.72x = 9,658,586.41 × 3,779,711.72
  4. Step 4: Simplify right side
    6,998,975.72x = 36,506,672,194,767.52
  5. Step 5: Solve for x
    x = 36,506,672,194,767.52/6,998,975.72
  6. Step 6: Final answer
    x = 5,216,002.12

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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.