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Finding the Fourth Proportional to 39,705.42, 54,793.54 and 22,938.42

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Solution

The fourth proportional to 39,705.42, 54,793.54 and 22,938.42 is: 31,655.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.42 : 54,793.54 = 22,938.42 : x
  2. Step 2: Convert to fraction form
    39,705.42/54,793.54 = 22,938.42/x
  3. Step 3: Cross multiply
    39,705.42x = 54,793.54 × 22,938.42
  4. Step 4: Simplify right side
    39,705.42x = 1,256,877,233.81
  5. Step 5: Solve for x
    x = 1,256,877,233.81/39,705.42
  6. Step 6: Final answer
    x = 31,655.05

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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.