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Finding the Fourth Proportional to 11,776.61, 16,251.73 and 6,471.74

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Solution

The fourth proportional to 11,776.61, 16,251.73 and 6,471.74 is: 8,931.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776.61 : 16,251.73 = 6,471.74 : x
  2. Step 2: Convert to fraction form
    11,776.61/16,251.73 = 6,471.74/x
  3. Step 3: Cross multiply
    11,776.61x = 16,251.73 × 6,471.74
  4. Step 4: Simplify right side
    11,776.61x = 105,176,873.67
  5. Step 5: Solve for x
    x = 105,176,873.67/11,776.61
  6. Step 6: Final answer
    x = 8,931.00

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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.