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Finding the Fourth Proportional to 8,910,279.40, 13,365,419.10 and 8,910,279.40

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Solution

The fourth proportional to 8,910,279.40, 13,365,419.10 and 8,910,279.40 is: 13,365,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910,279.40 : 13,365,419.10 = 8,910,279.40 : x
  2. Step 2: Convert to fraction form
    8,910,279.40/13,365,419.10 = 8,910,279.40/x
  3. Step 3: Cross multiply
    8,910,279.40x = 13,365,419.10 × 8,910,279.40
  4. Step 4: Simplify right side
    8,910,279.40x = 119,089,618,479,096.55
  5. Step 5: Solve for x
    x = 119,089,618,479,096.55/8,910,279.40
  6. Step 6: Final answer
    x = 13,365,419.10

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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.