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Finding the Fourth Proportional to 32,706.21, 45,128.40 and 19,281.68

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Solution

The fourth proportional to 32,706.21, 45,128.40 and 19,281.68 is: 26,605.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,706.21 : 45,128.40 = 19,281.68 : x
  2. Step 2: Convert to fraction form
    32,706.21/45,128.40 = 19,281.68/x
  3. Step 3: Cross multiply
    32,706.21x = 45,128.40 × 19,281.68
  4. Step 4: Simplify right side
    32,706.21x = 870,151,142.07
  5. Step 5: Solve for x
    x = 870,151,142.07/32,706.21
  6. Step 6: Final answer
    x = 26,605.07

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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.