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Finding the Fourth Proportional to 35,782.87, 53,674.30 and 13,590.99

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Solution

The fourth proportional to 35,782.87, 53,674.30 and 13,590.99 is: 20,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,782.87 : 53,674.30 = 13,590.99 : x
  2. Step 2: Convert to fraction form
    35,782.87/53,674.30 = 13,590.99/x
  3. Step 3: Cross multiply
    35,782.87x = 53,674.30 × 13,590.99
  4. Step 4: Simplify right side
    35,782.87x = 729,487,092.82
  5. Step 5: Solve for x
    x = 729,487,092.82/35,782.87
  6. Step 6: Final answer
    x = 20,386.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.