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Finding the Fourth Proportional to 38,597.88, 53,265.07 and 20,933.88

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Solution

The fourth proportional to 38,597.88, 53,265.07 and 20,933.88 is: 28,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,597.88 : 53,265.07 = 20,933.88 : x
  2. Step 2: Convert to fraction form
    38,597.88/53,265.07 = 20,933.88/x
  3. Step 3: Cross multiply
    38,597.88x = 53,265.07 × 20,933.88
  4. Step 4: Simplify right side
    38,597.88x = 1,115,044,583.57
  5. Step 5: Solve for x
    x = 1,115,044,583.57/38,597.88
  6. Step 6: Final answer
    x = 28,888.75

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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.