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Finding the Fourth Proportional to 10,769,642.40, 16,163,276.40 and 10,685,661.60

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Solution

The fourth proportional to 10,769,642.40, 16,163,276.40 and 10,685,661.60 is: 16,037,236.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,769,642.40 : 16,163,276.40 = 10,685,661.60 : x
  2. Step 2: Convert to fraction form
    10,769,642.40/16,163,276.40 = 10,685,661.60/x
  3. Step 3: Cross multiply
    10,769,642.40x = 16,163,276.40 × 10,685,661.60
  4. Step 4: Simplify right side
    10,769,642.40x = 172,715,301,957,666.25
  5. Step 5: Solve for x
    x = 172,715,301,957,666.25/10,769,642.40
  6. Step 6: Final answer
    x = 16,037,236.48

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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.