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Finding the Fourth Proportional to 79,570.50, 109,812.00 and 45,589.53

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Solution

The fourth proportional to 79,570.50, 109,812.00 and 45,589.53 is: 62,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,570.50 : 109,812.00 = 45,589.53 : x
  2. Step 2: Convert to fraction form
    79,570.50/109,812.00 = 45,589.53/x
  3. Step 3: Cross multiply
    79,570.50x = 109,812.00 × 45,589.53
  4. Step 4: Simplify right side
    79,570.50x = 5,006,278,051.12
  5. Step 5: Solve for x
    x = 5,006,278,051.12/79,570.50
  6. Step 6: Final answer
    x = 62,916.26

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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.