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Finding the Fourth Proportional to 9,958.34, 13,742.90 and 5,482.51

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Solution

The fourth proportional to 9,958.34, 13,742.90 and 5,482.51 is: 7,566.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,958.34 : 13,742.90 = 5,482.51 : x
  2. Step 2: Convert to fraction form
    9,958.34/13,742.90 = 5,482.51/x
  3. Step 3: Cross multiply
    9,958.34x = 13,742.90 × 5,482.51
  4. Step 4: Simplify right side
    9,958.34x = 75,345,526.14
  5. Step 5: Solve for x
    x = 75,345,526.14/9,958.34
  6. Step 6: Final answer
    x = 7,566.07

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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.