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Finding the Fourth Proportional to 53,246.40, 79,869.60 and 52,900.80

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Solution

The fourth proportional to 53,246.40, 79,869.60 and 52,900.80 is: 79,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,246.40 : 79,869.60 = 52,900.80 : x
  2. Step 2: Convert to fraction form
    53,246.40/79,869.60 = 52,900.80/x
  3. Step 3: Cross multiply
    53,246.40x = 79,869.60 × 52,900.80
  4. Step 4: Simplify right side
    53,246.40x = 4,225,165,735.68
  5. Step 5: Solve for x
    x = 4,225,165,735.68/53,246.40
  6. Step 6: Final answer
    x = 79,351.20

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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.