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Finding the Fourth Proportional to 13,935,998.70, 20,903,998.05 and 13,935,998.70

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Solution

The fourth proportional to 13,935,998.70, 20,903,998.05 and 13,935,998.70 is: 20,903,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935,998.70 : 20,903,998.05 = 13,935,998.70 : x
  2. Step 2: Convert to fraction form
    13,935,998.70/20,903,998.05 = 13,935,998.70/x
  3. Step 3: Cross multiply
    13,935,998.70x = 20,903,998.05 × 13,935,998.70
  4. Step 4: Simplify right side
    13,935,998.70x = 291,318,089,649,602.50
  5. Step 5: Solve for x
    x = 291,318,089,649,602.50/13,935,998.70
  6. Step 6: Final answer
    x = 20,903,998.05

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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.