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Finding the Fourth Proportional to 9,888.47, 14,832.40 and 2,492.97

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Solution

The fourth proportional to 9,888.47, 14,832.40 and 2,492.97 is: 3,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.47 : 14,832.40 = 2,492.97 : x
  2. Step 2: Convert to fraction form
    9,888.47/14,832.40 = 2,492.97/x
  3. Step 3: Cross multiply
    9,888.47x = 14,832.40 × 2,492.97
  4. Step 4: Simplify right side
    9,888.47x = 36,976,728.23
  5. Step 5: Solve for x
    x = 36,976,728.23/9,888.47
  6. Step 6: Final answer
    x = 3,739.38

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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.