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Finding the Fourth Proportional to 34,405.84, 51,602.28 and 13,345.84

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Solution

The fourth proportional to 34,405.84, 51,602.28 and 13,345.84 is: 20,016.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,405.84 : 51,602.28 = 13,345.84 : x
  2. Step 2: Convert to fraction form
    34,405.84/51,602.28 = 13,345.84/x
  3. Step 3: Cross multiply
    34,405.84x = 51,602.28 × 13,345.84
  4. Step 4: Simplify right side
    34,405.84x = 688,675,772.52
  5. Step 5: Solve for x
    x = 688,675,772.52/34,405.84
  6. Step 6: Final answer
    x = 20,016.25

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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.