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Finding the Fourth Proportional to 38,296.96, 52,848.79 and 21,300.32

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Solution

The fourth proportional to 38,296.96, 52,848.79 and 21,300.32 is: 29,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,296.96 : 52,848.79 = 21,300.32 : x
  2. Step 2: Convert to fraction form
    38,296.96/52,848.79 = 21,300.32/x
  3. Step 3: Cross multiply
    38,296.96x = 52,848.79 × 21,300.32
  4. Step 4: Simplify right side
    38,296.96x = 1,125,696,217.48
  5. Step 5: Solve for x
    x = 1,125,696,217.48/38,296.96
  6. Step 6: Final answer
    x = 29,393.88

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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.