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Finding the Fourth Proportional to 7,210.58, 9,948.89 and 4,066.16

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Solution

The fourth proportional to 7,210.58, 9,948.89 and 4,066.16 is: 5,610.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.58 : 9,948.89 = 4,066.16 : x
  2. Step 2: Convert to fraction form
    7,210.58/9,948.89 = 4,066.16/x
  3. Step 3: Cross multiply
    7,210.58x = 9,948.89 × 4,066.16
  4. Step 4: Simplify right side
    7,210.58x = 40,453,738.98
  5. Step 5: Solve for x
    x = 40,453,738.98/7,210.58
  6. Step 6: Final answer
    x = 5,610.33

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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.