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Finding the Fourth Proportional to 8,851.84, 12,216.16 and 6,554.50

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Solution

The fourth proportional to 8,851.84, 12,216.16 and 6,554.50 is: 9,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.84 : 12,216.16 = 6,554.50 : x
  2. Step 2: Convert to fraction form
    8,851.84/12,216.16 = 6,554.50/x
  3. Step 3: Cross multiply
    8,851.84x = 12,216.16 × 6,554.50
  4. Step 4: Simplify right side
    8,851.84x = 80,070,820.72
  5. Step 5: Solve for x
    x = 80,070,820.72/8,851.84
  6. Step 6: Final answer
    x = 9,045.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.