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Finding the Fourth Proportional to 58,283.81, 80,460.70 and 38,171.51

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Solution

The fourth proportional to 58,283.81, 80,460.70 and 38,171.51 is: 52,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,283.81 : 80,460.70 = 38,171.51 : x
  2. Step 2: Convert to fraction form
    58,283.81/80,460.70 = 38,171.51/x
  3. Step 3: Cross multiply
    58,283.81x = 80,460.70 × 38,171.51
  4. Step 4: Simplify right side
    58,283.81x = 3,071,305,916.92
  5. Step 5: Solve for x
    x = 3,071,305,916.92/58,283.81
  6. Step 6: Final answer
    x = 52,695.70

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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.