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Finding the Fourth Proportional to 8,307.61, 12,466.08 and 4,411.92

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Solution

The fourth proportional to 8,307.61, 12,466.08 and 4,411.92 is: 6,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.61 : 12,466.08 = 4,411.92 : x
  2. Step 2: Convert to fraction form
    8,307.61/12,466.08 = 4,411.92/x
  3. Step 3: Cross multiply
    8,307.61x = 12,466.08 × 4,411.92
  4. Step 4: Simplify right side
    8,307.61x = 54,999,311.89
  5. Step 5: Solve for x
    x = 54,999,311.89/8,307.61
  6. Step 6: Final answer
    x = 6,620.35

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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.