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Finding the Fourth Proportional to 8,241,835.80, 12,362,753.70 and 4,210,757.40

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Solution

The fourth proportional to 8,241,835.80, 12,362,753.70 and 4,210,757.40 is: 6,316,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241,835.80 : 12,362,753.70 = 4,210,757.40 : x
  2. Step 2: Convert to fraction form
    8,241,835.80/12,362,753.70 = 4,210,757.40/x
  3. Step 3: Cross multiply
    8,241,835.80x = 12,362,753.70 × 4,210,757.40
  4. Step 4: Simplify right side
    8,241,835.80x = 52,056,556,626,652.38
  5. Step 5: Solve for x
    x = 52,056,556,626,652.38/8,241,835.80
  6. Step 6: Final answer
    x = 6,316,136.10

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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.