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Finding the Fourth Proportional to 6,506,648.54, 8,971,193.31 and 5,279,479.10

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Solution

The fourth proportional to 6,506,648.54, 8,971,193.31 and 5,279,479.10 is: 7,279,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,506,648.54 : 8,971,193.31 = 5,279,479.10 : x
  2. Step 2: Convert to fraction form
    6,506,648.54/8,971,193.31 = 5,279,479.10/x
  3. Step 3: Cross multiply
    6,506,648.54x = 8,971,193.31 × 5,279,479.10
  4. Step 4: Simplify right side
    6,506,648.54x = 47,363,227,582,204.82
  5. Step 5: Solve for x
    x = 47,363,227,582,204.82/6,506,648.54
  6. Step 6: Final answer
    x = 7,279,204.85

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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.