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Finding the Fourth Proportional to 7,393,582.80, 11,071,711.80 and 4,855,496.40

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Solution

The fourth proportional to 7,393,582.80, 11,071,711.80 and 4,855,496.40 is: 7,270,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393,582.80 : 11,071,711.80 = 4,855,496.40 : x
  2. Step 2: Convert to fraction form
    7,393,582.80/11,071,711.80 = 4,855,496.40/x
  3. Step 3: Cross multiply
    7,393,582.80x = 11,071,711.80 × 4,855,496.40
  4. Step 4: Simplify right side
    7,393,582.80x = 53,758,656,786,737.53
  5. Step 5: Solve for x
    x = 53,758,656,786,737.53/7,393,582.80
  6. Step 6: Final answer
    x = 7,270,988.67

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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.