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Finding the Fourth Proportional to 13,798,535.60, 20,697,803.40 and 13,704,057.20

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Solution

The fourth proportional to 13,798,535.60, 20,697,803.40 and 13,704,057.20 is: 20,556,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,798,535.60 : 20,697,803.40 = 13,704,057.20 : x
  2. Step 2: Convert to fraction form
    13,798,535.60/20,697,803.40 = 13,704,057.20/x
  3. Step 3: Cross multiply
    13,798,535.60x = 20,697,803.40 × 13,704,057.20
  4. Step 4: Simplify right side
    13,798,535.60x = 283,643,881,707,954.44
  5. Step 5: Solve for x
    x = 283,643,881,707,954.44/13,798,535.60
  6. Step 6: Final answer
    x = 20,556,085.80

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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.