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Finding the Fourth Proportional to 16,638,195.80, 23,343,862.60 and 16,638,195.80

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Solution

The fourth proportional to 16,638,195.80, 23,343,862.60 and 16,638,195.80 is: 23,343,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638,195.80 : 23,343,862.60 = 16,638,195.80 : x
  2. Step 2: Convert to fraction form
    16,638,195.80/23,343,862.60 = 16,638,195.80/x
  3. Step 3: Cross multiply
    16,638,195.80x = 23,343,862.60 × 16,638,195.80
  4. Step 4: Simplify right side
    16,638,195.80x = 388,399,756,667,097.12
  5. Step 5: Solve for x
    x = 388,399,756,667,097.12/16,638,195.80
  6. Step 6: Final answer
    x = 23,343,862.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.