Home / 7,412.48-10,251.60-6,585.20

Finding the Fourth Proportional to 7,412.48, 10,251.60 and 6,585.20

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Solution

The fourth proportional to 7,412.48, 10,251.60 and 6,585.20 is: 9,107.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.48 : 10,251.60 = 6,585.20 : x
  2. Step 2: Convert to fraction form
    7,412.48/10,251.60 = 6,585.20/x
  3. Step 3: Cross multiply
    7,412.48x = 10,251.60 × 6,585.20
  4. Step 4: Simplify right side
    7,412.48x = 67,508,836.32
  5. Step 5: Solve for x
    x = 67,508,836.32/7,412.48
  6. Step 6: Final answer
    x = 9,107.46

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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.