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Finding the Fourth Proportional to 53,745, 74,169.36 and 29,872.68

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Solution

The fourth proportional to 53,745, 74,169.36 and 29,872.68 is: 41,225.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,745 : 74,169.36 = 29,872.68 : x
  2. Step 2: Convert to fraction form
    53,745/74,169.36 = 29,872.68/x
  3. Step 3: Cross multiply
    53,745x = 74,169.36 × 29,872.68
  4. Step 4: Simplify right side
    53,745x = 2,215,637,557.08
  5. Step 5: Solve for x
    x = 2,215,637,557.08/53,745
  6. Step 6: Final answer
    x = 41,225.00

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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.