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Finding the Fourth Proportional to 53,063.91, 79,568.48 and 15,619.12

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Solution

The fourth proportional to 53,063.91, 79,568.48 and 15,619.12 is: 23,420.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,063.91 : 79,568.48 = 15,619.12 : x
  2. Step 2: Convert to fraction form
    53,063.91/79,568.48 = 15,619.12/x
  3. Step 3: Cross multiply
    53,063.91x = 79,568.48 × 15,619.12
  4. Step 4: Simplify right side
    53,063.91x = 1,242,789,477.46
  5. Step 5: Solve for x
    x = 1,242,789,477.46/53,063.91
  6. Step 6: Final answer
    x = 23,420.62

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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.