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Finding the Fourth Proportional to 8,461,829.80, 12,692,744.70 and 8,093,247.40

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Solution

The fourth proportional to 8,461,829.80, 12,692,744.70 and 8,093,247.40 is: 12,139,871.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461,829.80 : 12,692,744.70 = 8,093,247.40 : x
  2. Step 2: Convert to fraction form
    8,461,829.80/12,692,744.70 = 8,093,247.40/x
  3. Step 3: Cross multiply
    8,461,829.80x = 12,692,744.70 × 8,093,247.40
  4. Step 4: Simplify right side
    8,461,829.80x = 102,725,523,042,138.78
  5. Step 5: Solve for x
    x = 102,725,523,042,138.78/8,461,829.80
  6. Step 6: Final answer
    x = 12,139,871.10

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1.5x scale

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.