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Finding the Fourth Proportional to 6,426,894.70, 8,869,113.72 and 3,673,641.24

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Solution

The fourth proportional to 6,426,894.70, 8,869,113.72 and 3,673,641.24 is: 5,069,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426,894.70 : 8,869,113.72 = 3,673,641.24 : x
  2. Step 2: Convert to fraction form
    6,426,894.70/8,869,113.72 = 3,673,641.24/x
  3. Step 3: Cross multiply
    6,426,894.70x = 8,869,113.72 × 3,673,641.24
  4. Step 4: Simplify right side
    6,426,894.70x = 32,581,941,924,041.82
  5. Step 5: Solve for x
    x = 32,581,941,924,041.82/6,426,894.70
  6. Step 6: Final answer
    x = 5,069,624.36

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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.