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Finding the Fourth Proportional to 19,415.62, 29,123.70 and 5,564.62

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Solution

The fourth proportional to 19,415.62, 29,123.70 and 5,564.62 is: 8,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.62 : 29,123.70 = 5,564.62 : x
  2. Step 2: Convert to fraction form
    19,415.62/29,123.70 = 5,564.62/x
  3. Step 3: Cross multiply
    19,415.62x = 29,123.70 × 5,564.62
  4. Step 4: Simplify right side
    19,415.62x = 162,062,323.49
  5. Step 5: Solve for x
    x = 162,062,323.49/19,415.62
  6. Step 6: Final answer
    x = 8,347.01

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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.