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Finding the Fourth Proportional to 58,245.80, 80,408.30 and 38,133.50

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Solution

The fourth proportional to 58,245.80, 80,408.30 and 38,133.50 is: 52,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,245.80 : 80,408.30 = 38,133.50 : x
  2. Step 2: Convert to fraction form
    58,245.80/80,408.30 = 38,133.50/x
  3. Step 3: Cross multiply
    58,245.80x = 80,408.30 × 38,133.50
  4. Step 4: Simplify right side
    58,245.80x = 3,066,249,315.34
  5. Step 5: Solve for x
    x = 3,066,249,315.34/58,245.80
  6. Step 6: Final answer
    x = 52,643.27

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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.