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Finding the Fourth Proportional to 7,995.90, 12,004.65 and 5,087.10

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Solution

The fourth proportional to 7,995.90, 12,004.65 and 5,087.10 is: 7,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.90 : 12,004.65 = 5,087.10 : x
  2. Step 2: Convert to fraction form
    7,995.90/12,004.65 = 5,087.10/x
  3. Step 3: Cross multiply
    7,995.90x = 12,004.65 × 5,087.10
  4. Step 4: Simplify right side
    7,995.90x = 61,068,855.02
  5. Step 5: Solve for x
    x = 61,068,855.02/7,995.90
  6. Step 6: Final answer
    x = 7,637.52

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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.