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Finding the Fourth Proportional to 34,339,903.60, 51,509,855.40 and 8,782,913.20

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Solution

The fourth proportional to 34,339,903.60, 51,509,855.40 and 8,782,913.20 is: 13,174,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,339,903.60 : 51,509,855.40 = 8,782,913.20 : x
  2. Step 2: Convert to fraction form
    34,339,903.60/51,509,855.40 = 8,782,913.20/x
  3. Step 3: Cross multiply
    34,339,903.60x = 51,509,855.40 × 8,782,913.20
  4. Step 4: Simplify right side
    34,339,903.60x = 452,406,588,922,751.25
  5. Step 5: Solve for x
    x = 452,406,588,922,751.25/34,339,903.60
  6. Step 6: Final answer
    x = 13,174,369.80

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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.