Home / 7,015.57-9,681.34-4,031.33

Finding the Fourth Proportional to 7,015.57, 9,681.34 and 4,031.33

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Solution

The fourth proportional to 7,015.57, 9,681.34 and 4,031.33 is: 5,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.57 : 9,681.34 = 4,031.33 : x
  2. Step 2: Convert to fraction form
    7,015.57/9,681.34 = 4,031.33/x
  3. Step 3: Cross multiply
    7,015.57x = 9,681.34 × 4,031.33
  4. Step 4: Simplify right side
    7,015.57x = 39,028,676.38
  5. Step 5: Solve for x
    x = 39,028,676.38/7,015.57
  6. Step 6: Final answer
    x = 5,563.15

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Half scale
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Double scale
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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.