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Finding the Fourth Proportional to 13,205,339.70, 18,500,072.70 and 13,205,339.70

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Solution

The fourth proportional to 13,205,339.70, 18,500,072.70 and 13,205,339.70 is: 18,500,072.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205,339.70 : 18,500,072.70 = 13,205,339.70 : x
  2. Step 2: Convert to fraction form
    13,205,339.70/18,500,072.70 = 13,205,339.70/x
  3. Step 3: Cross multiply
    13,205,339.70x = 18,500,072.70 × 13,205,339.70
  4. Step 4: Simplify right side
    13,205,339.70x = 244,299,744,478,196.16
  5. Step 5: Solve for x
    x = 244,299,744,478,196.16/13,205,339.70
  6. Step 6: Final answer
    x = 18,500,072.70

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1.5x scale

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.