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Finding the Fourth Proportional to 37,703.80, 52,036.32 and 21,788.92

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Solution

The fourth proportional to 37,703.80, 52,036.32 and 21,788.92 is: 30,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,703.80 : 52,036.32 = 21,788.92 : x
  2. Step 2: Convert to fraction form
    37,703.80/52,036.32 = 21,788.92/x
  3. Step 3: Cross multiply
    37,703.80x = 52,036.32 × 21,788.92
  4. Step 4: Simplify right side
    37,703.80x = 1,133,815,213.57
  5. Step 5: Solve for x
    x = 1,133,815,213.57/37,703.80
  6. Step 6: Final answer
    x = 30,071.64

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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.