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Finding the Fourth Proportional to 53,359.51, 80,051.15 and 15,920.23

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Solution

The fourth proportional to 53,359.51, 80,051.15 and 15,920.23 is: 23,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,359.51 : 80,051.15 = 15,920.23 : x
  2. Step 2: Convert to fraction form
    53,359.51/80,051.15 = 15,920.23/x
  3. Step 3: Cross multiply
    53,359.51x = 80,051.15 × 15,920.23
  4. Step 4: Simplify right side
    53,359.51x = 1,274,432,440.04
  5. Step 5: Solve for x
    x = 1,274,432,440.04/53,359.51
  6. Step 6: Final answer
    x = 23,883.89

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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.