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Finding the Fourth Proportional to 10,865,708.70, 16,298,563.05 and 6,561,036.60

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Solution

The fourth proportional to 10,865,708.70, 16,298,563.05 and 6,561,036.60 is: 9,841,554.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865,708.70 : 16,298,563.05 = 6,561,036.60 : x
  2. Step 2: Convert to fraction form
    10,865,708.70/16,298,563.05 = 6,561,036.60/x
  3. Step 3: Cross multiply
    10,865,708.70x = 16,298,563.05 × 6,561,036.60
  4. Step 4: Simplify right side
    10,865,708.70x = 106,935,468,698,457.62
  5. Step 5: Solve for x
    x = 106,935,468,698,457.62/10,865,708.70
  6. Step 6: Final answer
    x = 9,841,554.90

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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.