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Finding the Fourth Proportional to 17,705.12, 26,547.44 and 7,305.12

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Solution

The fourth proportional to 17,705.12, 26,547.44 and 7,305.12 is: 10,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,705.12 : 26,547.44 = 7,305.12 : x
  2. Step 2: Convert to fraction form
    17,705.12/26,547.44 = 7,305.12/x
  3. Step 3: Cross multiply
    17,705.12x = 26,547.44 × 7,305.12
  4. Step 4: Simplify right side
    17,705.12x = 193,932,234.89
  5. Step 5: Solve for x
    x = 193,932,234.89/17,705.12
  6. Step 6: Final answer
    x = 10,953.45

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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.