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Finding the Fourth Proportional to 52,890.51, 72,990.95 and 29,018.19

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Solution

The fourth proportional to 52,890.51, 72,990.95 and 29,018.19 is: 40,046.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,890.51 : 72,990.95 = 29,018.19 : x
  2. Step 2: Convert to fraction form
    52,890.51/72,990.95 = 29,018.19/x
  3. Step 3: Cross multiply
    52,890.51x = 72,990.95 × 29,018.19
  4. Step 4: Simplify right side
    52,890.51x = 2,118,065,110.29
  5. Step 5: Solve for x
    x = 2,118,065,110.29/52,890.51
  6. Step 6: Final answer
    x = 40,046.22

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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.