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Finding the Fourth Proportional to 19,482.75, 26,886.20 and 10,650.75

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Solution

The fourth proportional to 19,482.75, 26,886.20 and 10,650.75 is: 14,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.75 : 26,886.20 = 10,650.75 : x
  2. Step 2: Convert to fraction form
    19,482.75/26,886.20 = 10,650.75/x
  3. Step 3: Cross multiply
    19,482.75x = 26,886.20 × 10,650.75
  4. Step 4: Simplify right side
    19,482.75x = 286,358,141.40
  5. Step 5: Solve for x
    x = 286,358,141.40/19,482.75
  6. Step 6: Final answer
    x = 14,698.04

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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.