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Finding the Fourth Proportional to 12,657.48, 17,466.98 and 6,992.10

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Solution

The fourth proportional to 12,657.48, 17,466.98 and 6,992.10 is: 9,648.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.48 : 17,466.98 = 6,992.10 : x
  2. Step 2: Convert to fraction form
    12,657.48/17,466.98 = 6,992.10/x
  3. Step 3: Cross multiply
    12,657.48x = 17,466.98 × 6,992.10
  4. Step 4: Simplify right side
    12,657.48x = 122,130,835.90
  5. Step 5: Solve for x
    x = 122,130,835.90/12,657.48
  6. Step 6: Final answer
    x = 9,648.91

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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.