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Finding the Fourth Proportional to 29,391.84, 40,532.88 and 19,302.48

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Solution

The fourth proportional to 29,391.84, 40,532.88 and 19,302.48 is: 26,619.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,391.84 : 40,532.88 = 19,302.48 : x
  2. Step 2: Convert to fraction form
    29,391.84/40,532.88 = 19,302.48/x
  3. Step 3: Cross multiply
    29,391.84x = 40,532.88 × 19,302.48
  4. Step 4: Simplify right side
    29,391.84x = 782,385,105.54
  5. Step 5: Solve for x
    x = 782,385,105.54/29,391.84
  6. Step 6: Final answer
    x = 26,619.13

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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.