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Finding the Fourth Proportional to 7,062.40, 10,593.60 and 4,139.20

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Solution

The fourth proportional to 7,062.40, 10,593.60 and 4,139.20 is: 6,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,062.40 : 10,593.60 = 4,139.20 : x
  2. Step 2: Convert to fraction form
    7,062.40/10,593.60 = 4,139.20/x
  3. Step 3: Cross multiply
    7,062.40x = 10,593.60 × 4,139.20
  4. Step 4: Simplify right side
    7,062.40x = 43,849,029.12
  5. Step 5: Solve for x
    x = 43,849,029.12/7,062.40
  6. Step 6: Final answer
    x = 6,208.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.