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Finding the Fourth Proportional to 7,279,750.40, 10,919,625.60 and 7,279,750.40

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Solution

The fourth proportional to 7,279,750.40, 10,919,625.60 and 7,279,750.40 is: 10,919,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279,750.40 : 10,919,625.60 = 7,279,750.40 : x
  2. Step 2: Convert to fraction form
    7,279,750.40/10,919,625.60 = 7,279,750.40/x
  3. Step 3: Cross multiply
    7,279,750.40x = 10,919,625.60 × 7,279,750.40
  4. Step 4: Simplify right side
    7,279,750.40x = 79,492,148,829,450.23
  5. Step 5: Solve for x
    x = 79,492,148,829,450.23/7,279,750.40
  6. Step 6: Final answer
    x = 10,919,625.60

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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.