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Finding the Fourth Proportional to 7,569,871.80, 11,354,807.70 and 4,882,486.20

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Solution

The fourth proportional to 7,569,871.80, 11,354,807.70 and 4,882,486.20 is: 7,323,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,569,871.80 : 11,354,807.70 = 4,882,486.20 : x
  2. Step 2: Convert to fraction form
    7,569,871.80/11,354,807.70 = 4,882,486.20/x
  3. Step 3: Cross multiply
    7,569,871.80x = 11,354,807.70 × 4,882,486.20
  4. Step 4: Simplify right side
    7,569,871.80x = 55,439,691,898,903.74
  5. Step 5: Solve for x
    x = 55,439,691,898,903.74/7,569,871.80
  6. Step 6: Final answer
    x = 7,323,729.30

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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.