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Finding the Fourth Proportional to 7,623.54, 11,492.44 and 7,115.52

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Solution

The fourth proportional to 7,623.54, 11,492.44 and 7,115.52 is: 10,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.54 : 11,492.44 = 7,115.52 : x
  2. Step 2: Convert to fraction form
    7,623.54/11,492.44 = 7,115.52/x
  3. Step 3: Cross multiply
    7,623.54x = 11,492.44 × 7,115.52
  4. Step 4: Simplify right side
    7,623.54x = 81,774,686.67
  5. Step 5: Solve for x
    x = 81,774,686.67/7,623.54
  6. Step 6: Final answer
    x = 10,726.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.