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Finding the Fourth Proportional to 56,556.40, 84,834.60 and 50,918.80

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Solution

The fourth proportional to 56,556.40, 84,834.60 and 50,918.80 is: 76,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,556.40 : 84,834.60 = 50,918.80 : x
  2. Step 2: Convert to fraction form
    56,556.40/84,834.60 = 50,918.80/x
  3. Step 3: Cross multiply
    56,556.40x = 84,834.60 × 50,918.80
  4. Step 4: Simplify right side
    56,556.40x = 4,319,676,030.48
  5. Step 5: Solve for x
    x = 4,319,676,030.48/56,556.40
  6. Step 6: Final answer
    x = 76,378.20

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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.