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Finding the Fourth Proportional to 9,179.04, 12,667.10 and 4,987.32

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Solution

The fourth proportional to 9,179.04, 12,667.10 and 4,987.32 is: 6,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.04 : 12,667.10 = 4,987.32 : x
  2. Step 2: Convert to fraction form
    9,179.04/12,667.10 = 4,987.32/x
  3. Step 3: Cross multiply
    9,179.04x = 12,667.10 × 4,987.32
  4. Step 4: Simplify right side
    9,179.04x = 63,174,881.17
  5. Step 5: Solve for x
    x = 63,174,881.17/9,179.04
  6. Step 6: Final answer
    x = 6,882.52

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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.