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Finding the Fourth Proportional to 30,315.65, 41,835.65 and 17,571.29

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Solution

The fourth proportional to 30,315.65, 41,835.65 and 17,571.29 is: 24,248.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,315.65 : 41,835.65 = 17,571.29 : x
  2. Step 2: Convert to fraction form
    30,315.65/41,835.65 = 17,571.29/x
  3. Step 3: Cross multiply
    30,315.65x = 41,835.65 × 17,571.29
  4. Step 4: Simplify right side
    30,315.65x = 735,106,041.45
  5. Step 5: Solve for x
    x = 735,106,041.45/30,315.65
  6. Step 6: Final answer
    x = 24,248.41

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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.