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Finding the Fourth Proportional to 12,805.02, 17,670.96 and 7,062.66

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Solution

The fourth proportional to 12,805.02, 17,670.96 and 7,062.66 is: 9,746.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805.02 : 17,670.96 = 7,062.66 : x
  2. Step 2: Convert to fraction form
    12,805.02/17,670.96 = 7,062.66/x
  3. Step 3: Cross multiply
    12,805.02x = 17,670.96 × 7,062.66
  4. Step 4: Simplify right side
    12,805.02x = 124,803,982.35
  5. Step 5: Solve for x
    x = 124,803,982.35/12,805.02
  6. Step 6: Final answer
    x = 9,746.49

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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.