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Finding the Fourth Proportional to 38,957.76, 53,766.18 and 23,047.74

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Solution

The fourth proportional to 38,957.76, 53,766.18 and 23,047.74 is: 31,808.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,957.76 : 53,766.18 = 23,047.74 : x
  2. Step 2: Convert to fraction form
    38,957.76/53,766.18 = 23,047.74/x
  3. Step 3: Cross multiply
    38,957.76x = 53,766.18 × 23,047.74
  4. Step 4: Simplify right side
    38,957.76x = 1,239,188,937.43
  5. Step 5: Solve for x
    x = 1,239,188,937.43/38,957.76
  6. Step 6: Final answer
    x = 31,808.53

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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.