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Finding the Fourth Proportional to 8,392,674.60, 12,598,343.10 and 5,201,404.20

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Solution

The fourth proportional to 8,392,674.60, 12,598,343.10 and 5,201,404.20 is: 7,807,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392,674.60 : 12,598,343.10 = 5,201,404.20 : x
  2. Step 2: Convert to fraction form
    8,392,674.60/12,598,343.10 = 5,201,404.20/x
  3. Step 3: Cross multiply
    8,392,674.60x = 12,598,343.10 × 5,201,404.20
  4. Step 4: Simplify right side
    8,392,674.60x = 65,529,074,713,381.02
  5. Step 5: Solve for x
    x = 65,529,074,713,381.02/8,392,674.60
  6. Step 6: Final answer
    x = 7,807,889.36

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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.