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Finding the Fourth Proportional to 58,062.51, 80,045.28 and 38,945.70

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Solution

The fourth proportional to 58,062.51, 80,045.28 and 38,945.70 is: 53,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,062.51 : 80,045.28 = 38,945.70 : x
  2. Step 2: Convert to fraction form
    58,062.51/80,045.28 = 38,945.70/x
  3. Step 3: Cross multiply
    58,062.51x = 80,045.28 × 38,945.70
  4. Step 4: Simplify right side
    58,062.51x = 3,117,419,461.30
  5. Step 5: Solve for x
    x = 3,117,419,461.30/58,062.51
  6. Step 6: Final answer
    x = 53,690.75

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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.