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Finding the Fourth Proportional to 16,763,978.96, 23,130,254.76 and 9,790,701.68

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Solution

The fourth proportional to 16,763,978.96, 23,130,254.76 and 9,790,701.68 is: 13,508,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763,978.96 : 23,130,254.76 = 9,790,701.68 : x
  2. Step 2: Convert to fraction form
    16,763,978.96/23,130,254.76 = 9,790,701.68/x
  3. Step 3: Cross multiply
    16,763,978.96x = 23,130,254.76 × 9,790,701.68
  4. Step 4: Simplify right side
    16,763,978.96x = 226,461,424,137,560
  5. Step 5: Solve for x
    x = 226,461,424,137,560/16,763,978.96
  6. Step 6: Final answer
    x = 13,508,811.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.