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Finding the Fourth Proportional to 53,282.40, 79,920.84 and 15,842.82

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Solution

The fourth proportional to 53,282.40, 79,920.84 and 15,842.82 is: 23,763.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,282.40 : 79,920.84 = 15,842.82 : x
  2. Step 2: Convert to fraction form
    53,282.40/79,920.84 = 15,842.82/x
  3. Step 3: Cross multiply
    53,282.40x = 79,920.84 × 15,842.82
  4. Step 4: Simplify right side
    53,282.40x = 1,266,171,482.37
  5. Step 5: Solve for x
    x = 1,266,171,482.37/53,282.40
  6. Step 6: Final answer
    x = 23,763.41

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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.