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Finding the Fourth Proportional to 6,447,976.91, 8,898,208.14 and 3,547,305.50

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Solution

The fourth proportional to 6,447,976.91, 8,898,208.14 and 3,547,305.50 is: 4,895,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447,976.91 : 8,898,208.14 = 3,547,305.50 : x
  2. Step 2: Convert to fraction form
    6,447,976.91/8,898,208.14 = 3,547,305.50/x
  3. Step 3: Cross multiply
    6,447,976.91x = 8,898,208.14 × 3,547,305.50
  4. Step 4: Simplify right side
    6,447,976.91x = 31,564,662,675,166.77
  5. Step 5: Solve for x
    x = 31,564,662,675,166.77/6,447,976.91
  6. Step 6: Final answer
    x = 4,895,281.59

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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.