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Finding the Fourth Proportional to 46,649.60, 69,945.60 and 26,918.40

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Solution

The fourth proportional to 46,649.60, 69,945.60 and 26,918.40 is: 40,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,649.60 : 69,945.60 = 26,918.40 : x
  2. Step 2: Convert to fraction form
    46,649.60/69,945.60 = 26,918.40/x
  3. Step 3: Cross multiply
    46,649.60x = 69,945.60 × 26,918.40
  4. Step 4: Simplify right side
    46,649.60x = 1,882,823,639.04
  5. Step 5: Solve for x
    x = 1,882,823,639.04/46,649.60
  6. Step 6: Final answer
    x = 40,360.98

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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.