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Finding the Fourth Proportional to 51,477.60, 77,216.40 and 18,197.40

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Solution

The fourth proportional to 51,477.60, 77,216.40 and 18,197.40 is: 27,296.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,477.60 : 77,216.40 = 18,197.40 : x
  2. Step 2: Convert to fraction form
    51,477.60/77,216.40 = 18,197.40/x
  3. Step 3: Cross multiply
    51,477.60x = 77,216.40 × 18,197.40
  4. Step 4: Simplify right side
    51,477.60x = 1,405,137,717.36
  5. Step 5: Solve for x
    x = 1,405,137,717.36/51,477.60
  6. Step 6: Final answer
    x = 27,296.10

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1.5x scale

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.