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Finding the Fourth Proportional to 9,045,909.45, 12,697,865.55 and 9,045,909.45

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Solution

The fourth proportional to 9,045,909.45, 12,697,865.55 and 9,045,909.45 is: 12,697,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045,909.45 : 12,697,865.55 = 9,045,909.45 : x
  2. Step 2: Convert to fraction form
    9,045,909.45/12,697,865.55 = 9,045,909.45/x
  3. Step 3: Cross multiply
    9,045,909.45x = 12,697,865.55 × 9,045,909.45
  4. Step 4: Simplify right side
    9,045,909.45x = 114,863,741,973,574.44
  5. Step 5: Solve for x
    x = 114,863,741,973,574.44/9,045,909.45
  6. Step 6: Final answer
    x = 12,697,865.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.