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Finding the Fourth Proportional to 18,507.52, 25,544.10 and 12,854.08

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Solution

The fourth proportional to 18,507.52, 25,544.10 and 12,854.08 is: 17,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.52 : 25,544.10 = 12,854.08 : x
  2. Step 2: Convert to fraction form
    18,507.52/25,544.10 = 12,854.08/x
  3. Step 3: Cross multiply
    18,507.52x = 25,544.10 × 12,854.08
  4. Step 4: Simplify right side
    18,507.52x = 328,345,904.93
  5. Step 5: Solve for x
    x = 328,345,904.93/18,507.52
  6. Step 6: Final answer
    x = 17,741.22

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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.