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Finding the Fourth Proportional to 10,777.88, 14,871.12 and 6,061.88

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Solution

The fourth proportional to 10,777.88, 14,871.12 and 6,061.88 is: 8,364.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,777.88 : 14,871.12 = 6,061.88 : x
  2. Step 2: Convert to fraction form
    10,777.88/14,871.12 = 6,061.88/x
  3. Step 3: Cross multiply
    10,777.88x = 14,871.12 × 6,061.88
  4. Step 4: Simplify right side
    10,777.88x = 90,146,944.91
  5. Step 5: Solve for x
    x = 90,146,944.91/10,777.88
  6. Step 6: Final answer
    x = 8,364.07

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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.