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Finding the Fourth Proportional to 10,662.84, 16,017.48 and 10,312.92

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Solution

The fourth proportional to 10,662.84, 16,017.48 and 10,312.92 is: 15,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662.84 : 16,017.48 = 10,312.92 : x
  2. Step 2: Convert to fraction form
    10,662.84/16,017.48 = 10,312.92/x
  3. Step 3: Cross multiply
    10,662.84x = 16,017.48 × 10,312.92
  4. Step 4: Simplify right side
    10,662.84x = 165,186,989.84
  5. Step 5: Solve for x
    x = 165,186,989.84/10,662.84
  6. Step 6: Final answer
    x = 15,491.84

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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.