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Finding the Fourth Proportional to 8,168,712.60, 12,253,068.90 and 7,796,703.90

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Solution

The fourth proportional to 8,168,712.60, 12,253,068.90 and 7,796,703.90 is: 11,695,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168,712.60 : 12,253,068.90 = 7,796,703.90 : x
  2. Step 2: Convert to fraction form
    8,168,712.60/12,253,068.90 = 7,796,703.90/x
  3. Step 3: Cross multiply
    8,168,712.60x = 12,253,068.90 × 7,796,703.90
  4. Step 4: Simplify right side
    8,168,712.60x = 95,533,550,079,598.72
  5. Step 5: Solve for x
    x = 95,533,550,079,598.72/8,168,712.60
  6. Step 6: Final answer
    x = 11,695,055.85

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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.