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Finding the Fourth Proportional to 8,803,811.40, 13,205,717.10 and 6,678,047.40

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Solution

The fourth proportional to 8,803,811.40, 13,205,717.10 and 6,678,047.40 is: 10,017,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803,811.40 : 13,205,717.10 = 6,678,047.40 : x
  2. Step 2: Convert to fraction form
    8,803,811.40/13,205,717.10 = 6,678,047.40/x
  3. Step 3: Cross multiply
    8,803,811.40x = 13,205,717.10 × 6,678,047.40
  4. Step 4: Simplify right side
    8,803,811.40x = 88,188,404,744,790.55
  5. Step 5: Solve for x
    x = 88,188,404,744,790.55/8,803,811.40
  6. Step 6: Final answer
    x = 10,017,071.10

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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.