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Finding the Fourth Proportional to 52,748.91, 79,123.38 and 15,812.91

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Solution

The fourth proportional to 52,748.91, 79,123.38 and 15,812.91 is: 23,719.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,748.91 : 79,123.38 = 15,812.91 : x
  2. Step 2: Convert to fraction form
    52,748.91/79,123.38 = 15,812.91/x
  3. Step 3: Cross multiply
    52,748.91x = 79,123.38 × 15,812.91
  4. Step 4: Simplify right side
    52,748.91x = 1,251,170,886.84
  5. Step 5: Solve for x
    x = 1,251,170,886.84/52,748.91
  6. Step 6: Final answer
    x = 23,719.37

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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.