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Finding the Fourth Proportional to 53,281.80, 73,529.64 and 29,408.40

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Solution

The fourth proportional to 53,281.80, 73,529.64 and 29,408.40 is: 40,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281.80 : 73,529.64 = 29,408.40 : x
  2. Step 2: Convert to fraction form
    53,281.80/73,529.64 = 29,408.40/x
  3. Step 3: Cross multiply
    53,281.80x = 73,529.64 × 29,408.40
  4. Step 4: Simplify right side
    53,281.80x = 2,162,389,064.98
  5. Step 5: Solve for x
    x = 2,162,389,064.98/53,281.80
  6. Step 6: Final answer
    x = 40,584.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.