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Finding the Fourth Proportional to 29,336.64, 40,484.14 and 15,907.64

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Solution

The fourth proportional to 29,336.64, 40,484.14 and 15,907.64 is: 21,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,336.64 : 40,484.14 = 15,907.64 : x
  2. Step 2: Convert to fraction form
    29,336.64/40,484.14 = 15,907.64/x
  3. Step 3: Cross multiply
    29,336.64x = 40,484.14 × 15,907.64
  4. Step 4: Simplify right side
    29,336.64x = 644,007,124.83
  5. Step 5: Solve for x
    x = 644,007,124.83/29,336.64
  6. Step 6: Final answer
    x = 21,952.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.