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Finding the Fourth Proportional to 13,377,778.40, 20,066,667.60 and 13,377,778.40

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Solution

The fourth proportional to 13,377,778.40, 20,066,667.60 and 13,377,778.40 is: 20,066,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377,778.40 : 20,066,667.60 = 13,377,778.40 : x
  2. Step 2: Convert to fraction form
    13,377,778.40/20,066,667.60 = 13,377,778.40/x
  3. Step 3: Cross multiply
    13,377,778.40x = 20,066,667.60 × 13,377,778.40
  4. Step 4: Simplify right side
    13,377,778.40x = 268,447,432,379,259.88
  5. Step 5: Solve for x
    x = 268,447,432,379,259.88/13,377,778.40
  6. Step 6: Final answer
    x = 20,066,667.60

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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.