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Finding the Fourth Proportional to 19,907.70, 29,854.35 and 10,043.70

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Solution

The fourth proportional to 19,907.70, 29,854.35 and 10,043.70 is: 15,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.70 : 29,854.35 = 10,043.70 : x
  2. Step 2: Convert to fraction form
    19,907.70/29,854.35 = 10,043.70/x
  3. Step 3: Cross multiply
    19,907.70x = 29,854.35 × 10,043.70
  4. Step 4: Simplify right side
    19,907.70x = 299,848,135.10
  5. Step 5: Solve for x
    x = 299,848,135.10/19,907.70
  6. Step 6: Final answer
    x = 15,061.92

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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.