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Finding the Fourth Proportional to 8,886.22, 13,315.95 and 7,029.70

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Solution

The fourth proportional to 8,886.22, 13,315.95 and 7,029.70 is: 10,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.22 : 13,315.95 = 7,029.70 : x
  2. Step 2: Convert to fraction form
    8,886.22/13,315.95 = 7,029.70/x
  3. Step 3: Cross multiply
    8,886.22x = 13,315.95 × 7,029.70
  4. Step 4: Simplify right side
    8,886.22x = 93,607,133.72
  5. Step 5: Solve for x
    x = 93,607,133.72/8,886.22
  6. Step 6: Final answer
    x = 10,533.97

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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.