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Finding the Fourth Proportional to 60,712.92, 91,014.25 and 21,248.51

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Solution

The fourth proportional to 60,712.92, 91,014.25 and 21,248.51 is: 31,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,712.92 : 91,014.25 = 21,248.51 : x
  2. Step 2: Convert to fraction form
    60,712.92/91,014.25 = 21,248.51/x
  3. Step 3: Cross multiply
    60,712.92x = 91,014.25 × 21,248.51
  4. Step 4: Simplify right side
    60,712.92x = 1,933,916,833.40
  5. Step 5: Solve for x
    x = 1,933,916,833.40/60,712.92
  6. Step 6: Final answer
    x = 31,853.46

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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.