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Finding the Fourth Proportional to 53,168.56, 79,752.84 and 15,725.72

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Solution

The fourth proportional to 53,168.56, 79,752.84 and 15,725.72 is: 23,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,168.56 : 79,752.84 = 15,725.72 : x
  2. Step 2: Convert to fraction form
    53,168.56/79,752.84 = 15,725.72/x
  3. Step 3: Cross multiply
    53,168.56x = 79,752.84 × 15,725.72
  4. Step 4: Simplify right side
    53,168.56x = 1,254,170,831.04
  5. Step 5: Solve for x
    x = 1,254,170,831.04/53,168.56
  6. Step 6: Final answer
    x = 23,588.58

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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.