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Finding the Fourth Proportional to 58,282.30, 80,428.70 and 32,786.74

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Solution

The fourth proportional to 58,282.30, 80,428.70 and 32,786.74 is: 45,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,282.30 : 80,428.70 = 32,786.74 : x
  2. Step 2: Convert to fraction form
    58,282.30/80,428.70 = 32,786.74/x
  3. Step 3: Cross multiply
    58,282.30x = 80,428.70 × 32,786.74
  4. Step 4: Simplify right side
    58,282.30x = 2,636,994,875.44
  5. Step 5: Solve for x
    x = 2,636,994,875.44/58,282.30
  6. Step 6: Final answer
    x = 45,245.21

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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.