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Finding the Fourth Proportional to 32,710.75, 45,146.72 and 19,281.22

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Solution

The fourth proportional to 32,710.75, 45,146.72 and 19,281.22 is: 26,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,710.75 : 45,146.72 = 19,281.22 : x
  2. Step 2: Convert to fraction form
    32,710.75/45,146.72 = 19,281.22/x
  3. Step 3: Cross multiply
    32,710.75x = 45,146.72 × 19,281.22
  4. Step 4: Simplify right side
    32,710.75x = 870,483,775.93
  5. Step 5: Solve for x
    x = 870,483,775.93/32,710.75
  6. Step 6: Final answer
    x = 26,611.55

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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.