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Finding the Fourth Proportional to 32,397.40, 44,706.90 and 21,785.32

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Solution

The fourth proportional to 32,397.40, 44,706.90 and 21,785.32 is: 30,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,397.40 : 44,706.90 = 21,785.32 : x
  2. Step 2: Convert to fraction form
    32,397.40/44,706.90 = 21,785.32/x
  3. Step 3: Cross multiply
    32,397.40x = 44,706.90 × 21,785.32
  4. Step 4: Simplify right side
    32,397.40x = 973,954,122.71
  5. Step 5: Solve for x
    x = 973,954,122.71/32,397.40
  6. Step 6: Final answer
    x = 30,062.72

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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.