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Finding the Fourth Proportional to 17,681.79, 24,420.02 and 10,983.45

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Solution

The fourth proportional to 17,681.79, 24,420.02 and 10,983.45 is: 15,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,681.79 : 24,420.02 = 10,983.45 : x
  2. Step 2: Convert to fraction form
    17,681.79/24,420.02 = 10,983.45/x
  3. Step 3: Cross multiply
    17,681.79x = 24,420.02 × 10,983.45
  4. Step 4: Simplify right side
    17,681.79x = 268,216,013.75
  5. Step 5: Solve for x
    x = 268,216,013.75/17,681.79
  6. Step 6: Final answer
    x = 15,169.05

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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.