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Finding the Fourth Proportional to 6,402,641.05, 9,603,977.98 and 2,616,123.93

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Solution

The fourth proportional to 6,402,641.05, 9,603,977.98 and 2,616,123.93 is: 3,924,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402,641.05 : 9,603,977.98 = 2,616,123.93 : x
  2. Step 2: Convert to fraction form
    6,402,641.05/9,603,977.98 = 2,616,123.93/x
  3. Step 3: Cross multiply
    6,402,641.05x = 9,603,977.98 × 2,616,123.93
  4. Step 4: Simplify right side
    6,402,641.05x = 25,125,196,579,020.54
  5. Step 5: Solve for x
    x = 25,125,196,579,020.54/6,402,641.05
  6. Step 6: Final answer
    x = 3,924,192.59

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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.