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Finding the Fourth Proportional to 15,775,551, 21,770,262 and 8,532,207

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Solution

The fourth proportional to 15,775,551, 21,770,262 and 8,532,207 is: 11,774,446.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775,551 : 21,770,262 = 8,532,207 : x
  2. Step 2: Convert to fraction form
    15,775,551/21,770,262 = 8,532,207/x
  3. Step 3: Cross multiply
    15,775,551x = 21,770,262 × 8,532,207
  4. Step 4: Simplify right side
    15,775,551x = 185,748,381,828,234
  5. Step 5: Solve for x
    x = 185,748,381,828,234/15,775,551
  6. Step 6: Final answer
    x = 11,774,446.54

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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.