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Finding the Fourth Proportional to 8,865,342.80, 13,298,017.80 and 2,133,756.80

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Solution

The fourth proportional to 8,865,342.80, 13,298,017.80 and 2,133,756.80 is: 3,200,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865,342.80 : 13,298,017.80 = 2,133,756.80 : x
  2. Step 2: Convert to fraction form
    8,865,342.80/13,298,017.80 = 2,133,756.80/x
  3. Step 3: Cross multiply
    8,865,342.80x = 13,298,017.80 × 2,133,756.80
  4. Step 4: Simplify right side
    8,865,342.80x = 28,374,735,907,271.04
  5. Step 5: Solve for x
    x = 28,374,735,907,271.04/8,865,342.80
  6. Step 6: Final answer
    x = 3,200,636.07

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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.