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Finding the Fourth Proportional to 58,781.47, 81,123.44 and 33,292.30

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Solution

The fourth proportional to 58,781.47, 81,123.44 and 33,292.30 is: 45,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,781.47 : 81,123.44 = 33,292.30 : x
  2. Step 2: Convert to fraction form
    58,781.47/81,123.44 = 33,292.30/x
  3. Step 3: Cross multiply
    58,781.47x = 81,123.44 × 33,292.30
  4. Step 4: Simplify right side
    58,781.47x = 2,700,785,901.51
  5. Step 5: Solve for x
    x = 2,700,785,901.51/58,781.47
  6. Step 6: Final answer
    x = 45,946.21

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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.