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Finding the Fourth Proportional to 83,145.84, 124,686.42 and 26,972.37

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Solution

The fourth proportional to 83,145.84, 124,686.42 and 26,972.37 is: 40,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,145.84 : 124,686.42 = 26,972.37 : x
  2. Step 2: Convert to fraction form
    83,145.84/124,686.42 = 26,972.37/x
  3. Step 3: Cross multiply
    83,145.84x = 124,686.42 × 26,972.37
  4. Step 4: Simplify right side
    83,145.84x = 3,363,088,254.22
  5. Step 5: Solve for x
    x = 3,363,088,254.22/83,145.84
  6. Step 6: Final answer
    x = 40,448.06

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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.