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Finding the Fourth Proportional to 29,401.64, 40,574.72 and 15,973.16

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Solution

The fourth proportional to 29,401.64, 40,574.72 and 15,973.16 is: 22,043.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,401.64 : 40,574.72 = 15,973.16 : x
  2. Step 2: Convert to fraction form
    29,401.64/40,574.72 = 15,973.16/x
  3. Step 3: Cross multiply
    29,401.64x = 40,574.72 × 15,973.16
  4. Step 4: Simplify right side
    29,401.64x = 648,106,494.52
  5. Step 5: Solve for x
    x = 648,106,494.52/29,401.64
  6. Step 6: Final answer
    x = 22,043.21

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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.