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Finding the Fourth Proportional to 19,482.70, 26,885.59 and 10,984.75

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Solution

The fourth proportional to 19,482.70, 26,885.59 and 10,984.75 is: 15,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.70 : 26,885.59 = 10,984.75 : x
  2. Step 2: Convert to fraction form
    19,482.70/26,885.59 = 10,984.75/x
  3. Step 3: Cross multiply
    19,482.70x = 26,885.59 × 10,984.75
  4. Step 4: Simplify right side
    19,482.70x = 295,331,390.08
  5. Step 5: Solve for x
    x = 295,331,390.08/19,482.70
  6. Step 6: Final answer
    x = 15,158.65

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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.