Home / 7,620.16-10,516.12-4,476.32

Finding the Fourth Proportional to 7,620.16, 10,516.12 and 4,476.32

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Solution

The fourth proportional to 7,620.16, 10,516.12 and 4,476.32 is: 6,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.16 : 10,516.12 = 4,476.32 : x
  2. Step 2: Convert to fraction form
    7,620.16/10,516.12 = 4,476.32/x
  3. Step 3: Cross multiply
    7,620.16x = 10,516.12 × 4,476.32
  4. Step 4: Simplify right side
    7,620.16x = 47,073,518.28
  5. Step 5: Solve for x
    x = 47,073,518.28/7,620.16
  6. Step 6: Final answer
    x = 6,177.50

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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.