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Finding the Fourth Proportional to 19,656.25, 27,125.22 and 10,703.91

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Solution

The fourth proportional to 19,656.25, 27,125.22 and 10,703.91 is: 14,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,656.25 : 27,125.22 = 10,703.91 : x
  2. Step 2: Convert to fraction form
    19,656.25/27,125.22 = 10,703.91/x
  3. Step 3: Cross multiply
    19,656.25x = 27,125.22 × 10,703.91
  4. Step 4: Simplify right side
    19,656.25x = 290,345,913.61
  5. Step 5: Solve for x
    x = 290,345,913.61/19,656.25
  6. Step 6: Final answer
    x = 14,771.18

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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.