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Finding the Fourth Proportional to 12,698,672.41, 17,524,309.94 and 7,472,835.91

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Solution

The fourth proportional to 12,698,672.41, 17,524,309.94 and 7,472,835.91 is: 10,312,597.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698,672.41 : 17,524,309.94 = 7,472,835.91 : x
  2. Step 2: Convert to fraction form
    12,698,672.41/17,524,309.94 = 7,472,835.91/x
  3. Step 3: Cross multiply
    12,698,672.41x = 17,524,309.94 × 7,472,835.91
  4. Step 4: Simplify right side
    12,698,672.41x = 130,956,292,617,601.95
  5. Step 5: Solve for x
    x = 130,956,292,617,601.95/12,698,672.41
  6. Step 6: Final answer
    x = 10,312,597.13

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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.