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Finding the Fourth Proportional to 57,660, 79,570.80 and 32,510.40

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Solution

The fourth proportional to 57,660, 79,570.80 and 32,510.40 is: 44,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,660 : 79,570.80 = 32,510.40 : x
  2. Step 2: Convert to fraction form
    57,660/79,570.80 = 32,510.40/x
  3. Step 3: Cross multiply
    57,660x = 79,570.80 × 32,510.40
  4. Step 4: Simplify right side
    57,660x = 2,586,878,536.32
  5. Step 5: Solve for x
    x = 2,586,878,536.32/57,660
  6. Step 6: Final answer
    x = 44,864.35

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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.