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Finding the Fourth Proportional to 53,247.78, 79,871.70 and 16,311.78

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Solution

The fourth proportional to 53,247.78, 79,871.70 and 16,311.78 is: 24,467.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,247.78 : 79,871.70 = 16,311.78 : x
  2. Step 2: Convert to fraction form
    53,247.78/79,871.70 = 16,311.78/x
  3. Step 3: Cross multiply
    53,247.78x = 79,871.70 × 16,311.78
  4. Step 4: Simplify right side
    53,247.78x = 1,302,849,598.63
  5. Step 5: Solve for x
    x = 1,302,849,598.63/53,247.78
  6. Step 6: Final answer
    x = 24,467.68

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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.