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Finding the Fourth Proportional to 8,483.76, 12,707.28 and 7,548.84

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Solution

The fourth proportional to 8,483.76, 12,707.28 and 7,548.84 is: 11,306.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,483.76 : 12,707.28 = 7,548.84 : x
  2. Step 2: Convert to fraction form
    8,483.76/12,707.28 = 7,548.84/x
  3. Step 3: Cross multiply
    8,483.76x = 12,707.28 × 7,548.84
  4. Step 4: Simplify right side
    8,483.76x = 95,925,223.56
  5. Step 5: Solve for x
    x = 95,925,223.56/8,483.76
  6. Step 6: Final answer
    x = 11,306.92

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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.