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Finding the Fourth Proportional to 12,602,368.96, 18,906,917.27 and 4,516,161.98

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Solution

The fourth proportional to 12,602,368.96, 18,906,917.27 and 4,516,161.98 is: 6,775,448.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602,368.96 : 18,906,917.27 = 4,516,161.98 : x
  2. Step 2: Convert to fraction form
    12,602,368.96/18,906,917.27 = 4,516,161.98/x
  3. Step 3: Cross multiply
    12,602,368.96x = 18,906,917.27 × 4,516,161.98
  4. Step 4: Simplify right side
    12,602,368.96x = 85,386,700,816,664
  5. Step 5: Solve for x
    x = 85,386,700,816,664/12,602,368.96
  6. Step 6: Final answer
    x = 6,775,448.42

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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.