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Finding the Fourth Proportional to 58,444.84, 87,645.72 and 20,994.85

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Solution

The fourth proportional to 58,444.84, 87,645.72 and 20,994.85 is: 31,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,444.84 : 87,645.72 = 20,994.85 : x
  2. Step 2: Convert to fraction form
    58,444.84/87,645.72 = 20,994.85/x
  3. Step 3: Cross multiply
    58,444.84x = 87,645.72 × 20,994.85
  4. Step 4: Simplify right side
    58,444.84x = 1,840,108,744.54
  5. Step 5: Solve for x
    x = 1,840,108,744.54/58,444.84
  6. Step 6: Final answer
    x = 31,484.54

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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.