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Finding the Fourth Proportional to 34,188.40, 51,253.80 and 17,772.40

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Solution

The fourth proportional to 34,188.40, 51,253.80 and 17,772.40 is: 26,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,188.40 : 51,253.80 = 17,772.40 : x
  2. Step 2: Convert to fraction form
    34,188.40/51,253.80 = 17,772.40/x
  3. Step 3: Cross multiply
    34,188.40x = 51,253.80 × 17,772.40
  4. Step 4: Simplify right side
    34,188.40x = 910,903,035.12
  5. Step 5: Solve for x
    x = 910,903,035.12/34,188.40
  6. Step 6: Final answer
    x = 26,643.63

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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.