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Finding the Fourth Proportional to 17,543.80, 26,242.80 and 14,919.40

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Solution

The fourth proportional to 17,543.80, 26,242.80 and 14,919.40 is: 22,317.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,543.80 : 26,242.80 = 14,919.40 : x
  2. Step 2: Convert to fraction form
    17,543.80/26,242.80 = 14,919.40/x
  3. Step 3: Cross multiply
    17,543.80x = 26,242.80 × 14,919.40
  4. Step 4: Simplify right side
    17,543.80x = 391,526,830.32
  5. Step 5: Solve for x
    x = 391,526,830.32/17,543.80
  6. Step 6: Final answer
    x = 22,317.11

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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.