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Finding the Fourth Proportional to 34,695,453.80, 52,005,855.90 and 13,121,719.40

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Solution

The fourth proportional to 34,695,453.80, 52,005,855.90 and 13,121,719.40 is: 19,668,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,695,453.80 : 52,005,855.90 = 13,121,719.40 : x
  2. Step 2: Convert to fraction form
    34,695,453.80/52,005,855.90 = 13,121,719.40/x
  3. Step 3: Cross multiply
    34,695,453.80x = 52,005,855.90 × 13,121,719.40
  4. Step 4: Simplify right side
    34,695,453.80x = 682,406,248,276,634.50
  5. Step 5: Solve for x
    x = 682,406,248,276,634.50/34,695,453.80
  6. Step 6: Final answer
    x = 19,668,462.97

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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.