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Finding the Fourth Proportional to 39,392.67, 59,089.80 and 11,313.65

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Solution

The fourth proportional to 39,392.67, 59,089.80 and 11,313.65 is: 16,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,392.67 : 59,089.80 = 11,313.65 : x
  2. Step 2: Convert to fraction form
    39,392.67/59,089.80 = 11,313.65/x
  3. Step 3: Cross multiply
    39,392.67x = 59,089.80 × 11,313.65
  4. Step 4: Simplify right side
    39,392.67x = 668,521,315.77
  5. Step 5: Solve for x
    x = 668,521,315.77/39,392.67
  6. Step 6: Final answer
    x = 16,970.70

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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.