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Finding the Fourth Proportional to 8,334,466.80, 12,529,693.80 and 7,102,748.40

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Solution

The fourth proportional to 8,334,466.80, 12,529,693.80 and 7,102,748.40 is: 10,677,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334,466.80 : 12,529,693.80 = 7,102,748.40 : x
  2. Step 2: Convert to fraction form
    8,334,466.80/12,529,693.80 = 7,102,748.40/x
  3. Step 3: Cross multiply
    8,334,466.80x = 12,529,693.80 × 7,102,748.40
  4. Step 4: Simplify right side
    8,334,466.80x = 88,995,262,590,439.94
  5. Step 5: Solve for x
    x = 88,995,262,590,439.94/8,334,466.80
  6. Step 6: Final answer
    x = 10,677,979.13

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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.