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Finding the Fourth Proportional to 15,855,151, 21,880,130.25 and 8,611,807

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Solution

The fourth proportional to 15,855,151, 21,880,130.25 and 8,611,807 is: 11,884,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855,151 : 21,880,130.25 = 8,611,807 : x
  2. Step 2: Convert to fraction form
    15,855,151/21,880,130.25 = 8,611,807/x
  3. Step 3: Cross multiply
    15,855,151x = 21,880,130.25 × 8,611,807
  4. Step 4: Simplify right side
    15,855,151x = 188,427,458,847,861.75
  5. Step 5: Solve for x
    x = 188,427,458,847,861.75/15,855,151
  6. Step 6: Final answer
    x = 11,884,305.54

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1.5x scale

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.