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Finding the Fourth Proportional to 17,068.40, 25,618.80 and 10,507.40

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Solution

The fourth proportional to 17,068.40, 25,618.80 and 10,507.40 is: 15,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,068.40 : 25,618.80 = 10,507.40 : x
  2. Step 2: Convert to fraction form
    17,068.40/25,618.80 = 10,507.40/x
  3. Step 3: Cross multiply
    17,068.40x = 25,618.80 × 10,507.40
  4. Step 4: Simplify right side
    17,068.40x = 269,186,979.12
  5. Step 5: Solve for x
    x = 269,186,979.12/17,068.40
  6. Step 6: Final answer
    x = 15,771.07

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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.