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Finding the Fourth Proportional to 9,165.66, 12,648.84 and 4,973.90

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Solution

The fourth proportional to 9,165.66, 12,648.84 and 4,973.90 is: 6,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.66 : 12,648.84 = 4,973.90 : x
  2. Step 2: Convert to fraction form
    9,165.66/12,648.84 = 4,973.90/x
  3. Step 3: Cross multiply
    9,165.66x = 12,648.84 × 4,973.90
  4. Step 4: Simplify right side
    9,165.66x = 62,914,065.28
  5. Step 5: Solve for x
    x = 62,914,065.28/9,165.66
  6. Step 6: Final answer
    x = 6,864.11

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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.