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Finding the Fourth Proportional to 24,459.81, 36,689.10 and 7,819.57

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Solution

The fourth proportional to 24,459.81, 36,689.10 and 7,819.57 is: 11,729.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,459.81 : 36,689.10 = 7,819.57 : x
  2. Step 2: Convert to fraction form
    24,459.81/36,689.10 = 7,819.57/x
  3. Step 3: Cross multiply
    24,459.81x = 36,689.10 × 7,819.57
  4. Step 4: Simplify right side
    24,459.81x = 286,892,985.69
  5. Step 5: Solve for x
    x = 286,892,985.69/24,459.81
  6. Step 6: Final answer
    x = 11,729.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.