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Finding the Fourth Proportional to 17,316.68, 25,965.80 and 8,988.32

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Solution

The fourth proportional to 17,316.68, 25,965.80 and 8,988.32 is: 13,477.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,316.68 : 25,965.80 = 8,988.32 : x
  2. Step 2: Convert to fraction form
    17,316.68/25,965.80 = 8,988.32/x
  3. Step 3: Cross multiply
    17,316.68x = 25,965.80 × 8,988.32
  4. Step 4: Simplify right side
    17,316.68x = 233,388,874.51
  5. Step 5: Solve for x
    x = 233,388,874.51/17,316.68
  6. Step 6: Final answer
    x = 13,477.69

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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.