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Finding the Fourth Proportional to 18,070.61, 24,961.27 and 13,873.53

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Solution

The fourth proportional to 18,070.61, 24,961.27 and 13,873.53 is: 19,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.61 : 24,961.27 = 13,873.53 : x
  2. Step 2: Convert to fraction form
    18,070.61/24,961.27 = 13,873.53/x
  3. Step 3: Cross multiply
    18,070.61x = 24,961.27 × 13,873.53
  4. Step 4: Simplify right side
    18,070.61x = 346,300,928.18
  5. Step 5: Solve for x
    x = 346,300,928.18/18,070.61
  6. Step 6: Final answer
    x = 19,163.77

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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.