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Finding the Fourth Proportional to 8,497.02, 12,808.47 and 7,045.41

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Solution

The fourth proportional to 8,497.02, 12,808.47 and 7,045.41 is: 10,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,497.02 : 12,808.47 = 7,045.41 : x
  2. Step 2: Convert to fraction form
    8,497.02/12,808.47 = 7,045.41/x
  3. Step 3: Cross multiply
    8,497.02x = 12,808.47 × 7,045.41
  4. Step 4: Simplify right side
    8,497.02x = 90,240,922.62
  5. Step 5: Solve for x
    x = 90,240,922.62/8,497.02
  6. Step 6: Final answer
    x = 10,620.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.