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Finding the Fourth Proportional to 17,892,762.60, 26,839,143.90 and 15,457,319.40

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Solution

The fourth proportional to 17,892,762.60, 26,839,143.90 and 15,457,319.40 is: 23,185,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,892,762.60 : 26,839,143.90 = 15,457,319.40 : x
  2. Step 2: Convert to fraction form
    17,892,762.60/26,839,143.90 = 15,457,319.40/x
  3. Step 3: Cross multiply
    17,892,762.60x = 26,839,143.90 × 15,457,319.40
  4. Step 4: Simplify right side
    17,892,762.60x = 414,861,219,684,861.62
  5. Step 5: Solve for x
    x = 414,861,219,684,861.62/17,892,762.60
  6. Step 6: Final answer
    x = 23,185,979.10

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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.