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Finding the Fourth Proportional to 7,656.93, 11,479.99 and 2,973.05

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Solution

The fourth proportional to 7,656.93, 11,479.99 and 2,973.05 is: 4,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.93 : 11,479.99 = 2,973.05 : x
  2. Step 2: Convert to fraction form
    7,656.93/11,479.99 = 2,973.05/x
  3. Step 3: Cross multiply
    7,656.93x = 11,479.99 × 2,973.05
  4. Step 4: Simplify right side
    7,656.93x = 34,130,519.44
  5. Step 5: Solve for x
    x = 34,130,519.44/7,656.93
  6. Step 6: Final answer
    x = 4,457.47

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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.