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Finding the Fourth Proportional to 11,777.63, 16,252.74 and 6,472.10

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Solution

The fourth proportional to 11,777.63, 16,252.74 and 6,472.10 is: 8,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.63 : 16,252.74 = 6,472.10 : x
  2. Step 2: Convert to fraction form
    11,777.63/16,252.74 = 6,472.10/x
  3. Step 3: Cross multiply
    11,777.63x = 16,252.74 × 6,472.10
  4. Step 4: Simplify right side
    11,777.63x = 105,189,277.29
  5. Step 5: Solve for x
    x = 105,189,277.29/11,777.63
  6. Step 6: Final answer
    x = 8,931.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.