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Finding the Fourth Proportional to 53,955.79, 74,432.53 and 36,055.20

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Solution

The fourth proportional to 53,955.79, 74,432.53 and 36,055.20 is: 49,738.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,955.79 : 74,432.53 = 36,055.20 : x
  2. Step 2: Convert to fraction form
    53,955.79/74,432.53 = 36,055.20/x
  3. Step 3: Cross multiply
    53,955.79x = 74,432.53 × 36,055.20
  4. Step 4: Simplify right side
    53,955.79x = 2,683,679,755.66
  5. Step 5: Solve for x
    x = 2,683,679,755.66/53,955.79
  6. Step 6: Final answer
    x = 49,738.49

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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.