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Finding the Fourth Proportional to 10,817.79, 14,927.94 and 6,101.79

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Solution

The fourth proportional to 10,817.79, 14,927.94 and 6,101.79 is: 8,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,817.79 : 14,927.94 = 6,101.79 : x
  2. Step 2: Convert to fraction form
    10,817.79/14,927.94 = 6,101.79/x
  3. Step 3: Cross multiply
    10,817.79x = 14,927.94 × 6,101.79
  4. Step 4: Simplify right side
    10,817.79x = 91,087,155.01
  5. Step 5: Solve for x
    x = 91,087,155.01/10,817.79
  6. Step 6: Final answer
    x = 8,420.13

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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.