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Finding the Fourth Proportional to 10,788,471.80, 16,182,707.70 and 9,706,052.60

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Solution

The fourth proportional to 10,788,471.80, 16,182,707.70 and 9,706,052.60 is: 14,559,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788,471.80 : 16,182,707.70 = 9,706,052.60 : x
  2. Step 2: Convert to fraction form
    10,788,471.80/16,182,707.70 = 9,706,052.60/x
  3. Step 3: Cross multiply
    10,788,471.80x = 16,182,707.70 × 9,706,052.60
  4. Step 4: Simplify right side
    10,788,471.80x = 157,070,212,146,625
  5. Step 5: Solve for x
    x = 157,070,212,146,625/10,788,471.80
  6. Step 6: Final answer
    x = 14,559,078.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.