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Finding the Fourth Proportional to 8,971,660.80, 13,457,491.20 and 6,562,461.60

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Solution

The fourth proportional to 8,971,660.80, 13,457,491.20 and 6,562,461.60 is: 9,843,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971,660.80 : 13,457,491.20 = 6,562,461.60 : x
  2. Step 2: Convert to fraction form
    8,971,660.80/13,457,491.20 = 6,562,461.60/x
  3. Step 3: Cross multiply
    8,971,660.80x = 13,457,491.20 × 6,562,461.60
  4. Step 4: Simplify right side
    8,971,660.80x = 88,314,269,232,337.91
  5. Step 5: Solve for x
    x = 88,314,269,232,337.91/8,971,660.80
  6. Step 6: Final answer
    x = 9,843,692.40

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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.