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Finding the Fourth Proportional to 6,663,320.66, 9,995,590.95 and 1,870,977.59

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Solution

The fourth proportional to 6,663,320.66, 9,995,590.95 and 1,870,977.59 is: 2,806,637.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663,320.66 : 9,995,590.95 = 1,870,977.59 : x
  2. Step 2: Convert to fraction form
    6,663,320.66/9,995,590.95 = 1,870,977.59/x
  3. Step 3: Cross multiply
    6,663,320.66x = 9,995,590.95 × 1,870,977.59
  4. Step 4: Simplify right side
    6,663,320.66x = 18,701,526,656,901.93
  5. Step 5: Solve for x
    x = 18,701,526,656,901.93/6,663,320.66
  6. Step 6: Final answer
    x = 2,806,637.65

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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.