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Finding the Fourth Proportional to 8,539.02, 12,744.54 and 7,498.98

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Solution

The fourth proportional to 8,539.02, 12,744.54 and 7,498.98 is: 11,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.02 : 12,744.54 = 7,498.98 : x
  2. Step 2: Convert to fraction form
    8,539.02/12,744.54 = 7,498.98/x
  3. Step 3: Cross multiply
    8,539.02x = 12,744.54 × 7,498.98
  4. Step 4: Simplify right side
    8,539.02x = 95,571,050.57
  5. Step 5: Solve for x
    x = 95,571,050.57/8,539.02
  6. Step 6: Final answer
    x = 11,192.27

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.