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Finding the Fourth Proportional to 7,403,690.70, 11,105,536.05 and 7,403,690.70

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Solution

The fourth proportional to 7,403,690.70, 11,105,536.05 and 7,403,690.70 is: 11,105,536.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,403,690.70 : 11,105,536.05 = 7,403,690.70 : x
  2. Step 2: Convert to fraction form
    7,403,690.70/11,105,536.05 = 7,403,690.70/x
  3. Step 3: Cross multiply
    7,403,690.70x = 11,105,536.05 × 7,403,690.70
  4. Step 4: Simplify right side
    7,403,690.70x = 82,221,953,971,899.75
  5. Step 5: Solve for x
    x = 82,221,953,971,899.75/7,403,690.70
  6. Step 6: Final answer
    x = 11,105,536.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.