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Finding the Fourth Proportional to 19,374.84, 29,065.29 and 8,281.58

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Solution

The fourth proportional to 19,374.84, 29,065.29 and 8,281.58 is: 12,423.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.84 : 29,065.29 = 8,281.58 : x
  2. Step 2: Convert to fraction form
    19,374.84/29,065.29 = 8,281.58/x
  3. Step 3: Cross multiply
    19,374.84x = 29,065.29 × 8,281.58
  4. Step 4: Simplify right side
    19,374.84x = 240,706,524.36
  5. Step 5: Solve for x
    x = 240,706,524.36/19,374.84
  6. Step 6: Final answer
    x = 12,423.67

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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.