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Finding the Fourth Proportional to 16,713.72, 25,066.26 and 7,931.16

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Solution

The fourth proportional to 16,713.72, 25,066.26 and 7,931.16 is: 11,894.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,713.72 : 25,066.26 = 7,931.16 : x
  2. Step 2: Convert to fraction form
    16,713.72/25,066.26 = 7,931.16/x
  3. Step 3: Cross multiply
    16,713.72x = 25,066.26 × 7,931.16
  4. Step 4: Simplify right side
    16,713.72x = 198,804,518.66
  5. Step 5: Solve for x
    x = 198,804,518.66/16,713.72
  6. Step 6: Final answer
    x = 11,894.69

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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.