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Finding the Fourth Proportional to 64,725.71, 97,092.74 and 20,354.18

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Solution

The fourth proportional to 64,725.71, 97,092.74 and 20,354.18 is: 30,532.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,725.71 : 97,092.74 = 20,354.18 : x
  2. Step 2: Convert to fraction form
    64,725.71/97,092.74 = 20,354.18/x
  3. Step 3: Cross multiply
    64,725.71x = 97,092.74 × 20,354.18
  4. Step 4: Simplify right side
    64,725.71x = 1,976,242,672.07
  5. Step 5: Solve for x
    x = 1,976,242,672.07/64,725.71
  6. Step 6: Final answer
    x = 30,532.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.