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Finding the Fourth Proportional to 48,323, 66,685.92 and 28,193.78

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Solution

The fourth proportional to 48,323, 66,685.92 and 28,193.78 is: 38,907.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,323 : 66,685.92 = 28,193.78 : x
  2. Step 2: Convert to fraction form
    48,323/66,685.92 = 28,193.78/x
  3. Step 3: Cross multiply
    48,323x = 66,685.92 × 28,193.78
  4. Step 4: Simplify right side
    48,323x = 1,880,128,157.58
  5. Step 5: Solve for x
    x = 1,880,128,157.58/48,323
  6. Step 6: Final answer
    x = 38,907.52

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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.