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Finding the Fourth Proportional to 11,806.79, 17,617.68 and 10,565.67

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Solution

The fourth proportional to 11,806.79, 17,617.68 and 10,565.67 is: 15,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,806.79 : 17,617.68 = 10,565.67 : x
  2. Step 2: Convert to fraction form
    11,806.79/17,617.68 = 10,565.67/x
  3. Step 3: Cross multiply
    11,806.79x = 17,617.68 × 10,565.67
  4. Step 4: Simplify right side
    11,806.79x = 186,142,547.61
  5. Step 5: Solve for x
    x = 186,142,547.61/11,806.79
  6. Step 6: Final answer
    x = 15,765.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.