Home / 8,465.21-11,678.10-5,482.03

Finding the Fourth Proportional to 8,465.21, 11,678.10 and 5,482.03

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Solution

The fourth proportional to 8,465.21, 11,678.10 and 5,482.03 is: 7,562.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.21 : 11,678.10 = 5,482.03 : x
  2. Step 2: Convert to fraction form
    8,465.21/11,678.10 = 5,482.03/x
  3. Step 3: Cross multiply
    8,465.21x = 11,678.10 × 5,482.03
  4. Step 4: Simplify right side
    8,465.21x = 64,019,636.15
  5. Step 5: Solve for x
    x = 64,019,636.15/8,465.21
  6. Step 6: Final answer
    x = 7,562.68

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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.