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Finding the Fourth Proportional to 23,643.76, 35,514.96 and 19,953.28

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Solution

The fourth proportional to 23,643.76, 35,514.96 and 19,953.28 is: 29,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,643.76 : 35,514.96 = 19,953.28 : x
  2. Step 2: Convert to fraction form
    23,643.76/35,514.96 = 19,953.28/x
  3. Step 3: Cross multiply
    23,643.76x = 35,514.96 × 19,953.28
  4. Step 4: Simplify right side
    23,643.76x = 708,639,941.07
  5. Step 5: Solve for x
    x = 708,639,941.07/23,643.76
  6. Step 6: Final answer
    x = 29,971.54

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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.