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Finding the Fourth Proportional to 32,931.84, 45,447.04 and 18,028.16

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Solution

The fourth proportional to 32,931.84, 45,447.04 and 18,028.16 is: 24,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,931.84 : 45,447.04 = 18,028.16 : x
  2. Step 2: Convert to fraction form
    32,931.84/45,447.04 = 18,028.16/x
  3. Step 3: Cross multiply
    32,931.84x = 45,447.04 × 18,028.16
  4. Step 4: Simplify right side
    32,931.84x = 819,326,508.65
  5. Step 5: Solve for x
    x = 819,326,508.65/32,931.84
  6. Step 6: Final answer
    x = 24,879.46

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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.