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Finding the Fourth Proportional to 7,975,395.80, 11,963,093.70 and 7,440,018.20

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Solution

The fourth proportional to 7,975,395.80, 11,963,093.70 and 7,440,018.20 is: 11,160,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975,395.80 : 11,963,093.70 = 7,440,018.20 : x
  2. Step 2: Convert to fraction form
    7,975,395.80/11,963,093.70 = 7,440,018.20/x
  3. Step 3: Cross multiply
    7,975,395.80x = 11,963,093.70 × 7,440,018.20
  4. Step 4: Simplify right side
    7,975,395.80x = 89,005,634,856,305.34
  5. Step 5: Solve for x
    x = 89,005,634,856,305.34/7,975,395.80
  6. Step 6: Final answer
    x = 11,160,027.30

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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.