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Finding the Fourth Proportional to 8,963.04, 12,369.80 and 4,984.08

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Solution

The fourth proportional to 8,963.04, 12,369.80 and 4,984.08 is: 6,878.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.04 : 12,369.80 = 4,984.08 : x
  2. Step 2: Convert to fraction form
    8,963.04/12,369.80 = 4,984.08/x
  3. Step 3: Cross multiply
    8,963.04x = 12,369.80 × 4,984.08
  4. Step 4: Simplify right side
    8,963.04x = 61,652,072.78
  5. Step 5: Solve for x
    x = 61,652,072.78/8,963.04
  6. Step 6: Final answer
    x = 6,878.48

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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.