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Finding the Fourth Proportional to 9,175.79, 12,662.66 and 4,984.04

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Solution

The fourth proportional to 9,175.79, 12,662.66 and 4,984.04 is: 6,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,175.79 : 12,662.66 = 4,984.04 : x
  2. Step 2: Convert to fraction form
    9,175.79/12,662.66 = 4,984.04/x
  3. Step 3: Cross multiply
    9,175.79x = 12,662.66 × 4,984.04
  4. Step 4: Simplify right side
    9,175.79x = 63,111,203.95
  5. Step 5: Solve for x
    x = 63,111,203.95/9,175.79
  6. Step 6: Final answer
    x = 6,878.01

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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.