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Finding the Fourth Proportional to 6,477,663.71, 9,709,992.89 and 2,214,916.67

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Solution

The fourth proportional to 6,477,663.71, 9,709,992.89 and 2,214,916.67 is: 3,320,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477,663.71 : 9,709,992.89 = 2,214,916.67 : x
  2. Step 2: Convert to fraction form
    6,477,663.71/9,709,992.89 = 2,214,916.67/x
  3. Step 3: Cross multiply
    6,477,663.71x = 9,709,992.89 × 2,214,916.67
  4. Step 4: Simplify right side
    6,477,663.71x = 21,506,825,106,567.89
  5. Step 5: Solve for x
    x = 21,506,825,106,567.89/6,477,663.71
  6. Step 6: Final answer
    x = 3,320,151.53

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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.