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Finding the Fourth Proportional to 13,207,429.65, 18,515,595.75 and 13,207,429.65

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Solution

The fourth proportional to 13,207,429.65, 18,515,595.75 and 13,207,429.65 is: 18,515,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207,429.65 : 18,515,595.75 = 13,207,429.65 : x
  2. Step 2: Convert to fraction form
    13,207,429.65/18,515,595.75 = 13,207,429.65/x
  3. Step 3: Cross multiply
    13,207,429.65x = 18,515,595.75 × 13,207,429.65
  4. Step 4: Simplify right side
    13,207,429.65x = 244,543,428,295,964
  5. Step 5: Solve for x
    x = 244,543,428,295,964/13,207,429.65
  6. Step 6: Final answer
    x = 18,515,595.75

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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.