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Finding the Fourth Proportional to 7,979.04, 11,008.98 and 5,458.32

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Solution

The fourth proportional to 7,979.04, 11,008.98 and 5,458.32 is: 7,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.04 : 11,008.98 = 5,458.32 : x
  2. Step 2: Convert to fraction form
    7,979.04/11,008.98 = 5,458.32/x
  3. Step 3: Cross multiply
    7,979.04x = 11,008.98 × 5,458.32
  4. Step 4: Simplify right side
    7,979.04x = 60,090,535.71
  5. Step 5: Solve for x
    x = 60,090,535.71/7,979.04
  6. Step 6: Final answer
    x = 7,531.05

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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.