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Finding the Fourth Proportional to 10,542.28, 15,813.06 and 4,998.28

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Solution

The fourth proportional to 10,542.28, 15,813.06 and 4,998.28 is: 7,497.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.28 : 15,813.06 = 4,998.28 : x
  2. Step 2: Convert to fraction form
    10,542.28/15,813.06 = 4,998.28/x
  3. Step 3: Cross multiply
    10,542.28x = 15,813.06 × 4,998.28
  4. Step 4: Simplify right side
    10,542.28x = 79,038,101.54
  5. Step 5: Solve for x
    x = 79,038,101.54/10,542.28
  6. Step 6: Final answer
    x = 7,497.25

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Double scale
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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.