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Finding the Fourth Proportional to 11,358.40, 17,005.20 and 10,062.40

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Solution

The fourth proportional to 11,358.40, 17,005.20 and 10,062.40 is: 15,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358.40 : 17,005.20 = 10,062.40 : x
  2. Step 2: Convert to fraction form
    11,358.40/17,005.20 = 10,062.40/x
  3. Step 3: Cross multiply
    11,358.40x = 17,005.20 × 10,062.40
  4. Step 4: Simplify right side
    11,358.40x = 171,113,124.48
  5. Step 5: Solve for x
    x = 171,113,124.48/11,358.40
  6. Step 6: Final answer
    x = 15,064.90

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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.