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Finding the Fourth Proportional to 6,464,703.69, 8,921,288.24 and 3,711,568.67

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Solution

The fourth proportional to 6,464,703.69, 8,921,288.24 and 3,711,568.67 is: 5,121,963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464,703.69 : 8,921,288.24 = 3,711,568.67 : x
  2. Step 2: Convert to fraction form
    6,464,703.69/8,921,288.24 = 3,711,568.67/x
  3. Step 3: Cross multiply
    6,464,703.69x = 8,921,288.24 × 3,711,568.67
  4. Step 4: Simplify right side
    6,464,703.69x = 33,111,973,939,031.08
  5. Step 5: Solve for x
    x = 33,111,973,939,031.08/6,464,703.69
  6. Step 6: Final answer
    x = 5,121,963.13

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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.