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Finding the Fourth Proportional to 13,603,148.10, 20,404,722.15 and 13,603,148.10

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Solution

The fourth proportional to 13,603,148.10, 20,404,722.15 and 13,603,148.10 is: 20,404,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603,148.10 : 20,404,722.15 = 13,603,148.10 : x
  2. Step 2: Convert to fraction form
    13,603,148.10/20,404,722.15 = 13,603,148.10/x
  3. Step 3: Cross multiply
    13,603,148.10x = 20,404,722.15 × 13,603,148.10
  4. Step 4: Simplify right side
    13,603,148.10x = 277,568,457,345,800.38
  5. Step 5: Solve for x
    x = 277,568,457,345,800.38/13,603,148.10
  6. Step 6: Final answer
    x = 20,404,722.15

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1.5x scale

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.