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Finding the Fourth Proportional to 53,165.40, 79,748.10 and 44,563.80

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Solution

The fourth proportional to 53,165.40, 79,748.10 and 44,563.80 is: 66,845.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,165.40 : 79,748.10 = 44,563.80 : x
  2. Step 2: Convert to fraction form
    53,165.40/79,748.10 = 44,563.80/x
  3. Step 3: Cross multiply
    53,165.40x = 79,748.10 × 44,563.80
  4. Step 4: Simplify right side
    53,165.40x = 3,553,878,378.78
  5. Step 5: Solve for x
    x = 3,553,878,378.78/53,165.40
  6. Step 6: Final answer
    x = 66,845.70

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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.