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Finding the Fourth Proportional to 67,673.81, 93,368.39 and 39,374.03

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Solution

The fourth proportional to 67,673.81, 93,368.39 and 39,374.03 is: 54,323.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,673.81 : 93,368.39 = 39,374.03 : x
  2. Step 2: Convert to fraction form
    67,673.81/93,368.39 = 39,374.03/x
  3. Step 3: Cross multiply
    67,673.81x = 93,368.39 × 39,374.03
  4. Step 4: Simplify right side
    67,673.81x = 3,676,289,788.91
  5. Step 5: Solve for x
    x = 3,676,289,788.91/67,673.81
  6. Step 6: Final answer
    x = 54,323.67

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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.