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Finding the Fourth Proportional to 11,642.59, 17,384.57 and 10,984.74

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Solution

The fourth proportional to 11,642.59, 17,384.57 and 10,984.74 is: 16,402.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,642.59 : 17,384.57 = 10,984.74 : x
  2. Step 2: Convert to fraction form
    11,642.59/17,384.57 = 10,984.74/x
  3. Step 3: Cross multiply
    11,642.59x = 17,384.57 × 10,984.74
  4. Step 4: Simplify right side
    11,642.59x = 190,964,981.46
  5. Step 5: Solve for x
    x = 190,964,981.46/11,642.59
  6. Step 6: Final answer
    x = 16,402.28

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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.