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Finding the Fourth Proportional to 74,705.40, 112,058.10 and 27,955.80

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Solution

The fourth proportional to 74,705.40, 112,058.10 and 27,955.80 is: 41,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705.40 : 112,058.10 = 27,955.80 : x
  2. Step 2: Convert to fraction form
    74,705.40/112,058.10 = 27,955.80/x
  3. Step 3: Cross multiply
    74,705.40x = 112,058.10 × 27,955.80
  4. Step 4: Simplify right side
    74,705.40x = 3,132,673,831.98
  5. Step 5: Solve for x
    x = 3,132,673,831.98/74,705.40
  6. Step 6: Final answer
    x = 41,933.70

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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.