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Finding the Fourth Proportional to 17,955.48, 26,935.08 and 6,871.50

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Solution

The fourth proportional to 17,955.48, 26,935.08 and 6,871.50 is: 10,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.48 : 26,935.08 = 6,871.50 : x
  2. Step 2: Convert to fraction form
    17,955.48/26,935.08 = 6,871.50/x
  3. Step 3: Cross multiply
    17,955.48x = 26,935.08 × 6,871.50
  4. Step 4: Simplify right side
    17,955.48x = 185,084,402.22
  5. Step 5: Solve for x
    x = 185,084,402.22/17,955.48
  6. Step 6: Final answer
    x = 10,307.96

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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.