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Finding the Fourth Proportional to 7,886,950.40, 11,835,674.40 and 4,475,230.40

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Solution

The fourth proportional to 7,886,950.40, 11,835,674.40 and 4,475,230.40 is: 6,715,823.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886,950.40 : 11,835,674.40 = 4,475,230.40 : x
  2. Step 2: Convert to fraction form
    7,886,950.40/11,835,674.40 = 4,475,230.40/x
  3. Step 3: Cross multiply
    7,886,950.40x = 11,835,674.40 × 4,475,230.40
  4. Step 4: Simplify right side
    7,886,950.40x = 52,967,369,879,381.77
  5. Step 5: Solve for x
    x = 52,967,369,879,381.77/7,886,950.40
  6. Step 6: Final answer
    x = 6,715,823.89

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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.