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Finding the Fourth Proportional to 10,815.79, 14,925.18 and 6,099.79

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Solution

The fourth proportional to 10,815.79, 14,925.18 and 6,099.79 is: 8,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.79 : 14,925.18 = 6,099.79 : x
  2. Step 2: Convert to fraction form
    10,815.79/14,925.18 = 6,099.79/x
  3. Step 3: Cross multiply
    10,815.79x = 14,925.18 × 6,099.79
  4. Step 4: Simplify right side
    10,815.79x = 91,040,463.71
  5. Step 5: Solve for x
    x = 91,040,463.71/10,815.79
  6. Step 6: Final answer
    x = 8,417.37

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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.