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Finding the Fourth Proportional to 10,556.92, 15,828.98 and 7,266.40

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Solution

The fourth proportional to 10,556.92, 15,828.98 and 7,266.40 is: 10,895.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.92 : 15,828.98 = 7,266.40 : x
  2. Step 2: Convert to fraction form
    10,556.92/15,828.98 = 7,266.40/x
  3. Step 3: Cross multiply
    10,556.92x = 15,828.98 × 7,266.40
  4. Step 4: Simplify right side
    10,556.92x = 115,019,700.27
  5. Step 5: Solve for x
    x = 115,019,700.27/10,556.92
  6. Step 6: Final answer
    x = 10,895.19

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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.