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Finding the Fourth Proportional to 6,998,964.26, 9,658,570.80 and 3,779,700.26

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Solution

The fourth proportional to 6,998,964.26, 9,658,570.80 and 3,779,700.26 is: 5,215,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998,964.26 : 9,658,570.80 = 3,779,700.26 : x
  2. Step 2: Convert to fraction form
    6,998,964.26/9,658,570.80 = 3,779,700.26/x
  3. Step 3: Cross multiply
    6,998,964.26x = 9,658,570.80 × 3,779,700.26
  4. Step 4: Simplify right side
    6,998,964.26x = 36,506,502,563,988.41
  5. Step 5: Solve for x
    x = 36,506,502,563,988.41/6,998,964.26
  6. Step 6: Final answer
    x = 5,215,986.42

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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.