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Finding the Fourth Proportional to 63,428.52, 87,531.12 and 35,133.60

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Solution

The fourth proportional to 63,428.52, 87,531.12 and 35,133.60 is: 48,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,428.52 : 87,531.12 = 35,133.60 : x
  2. Step 2: Convert to fraction form
    63,428.52/87,531.12 = 35,133.60/x
  3. Step 3: Cross multiply
    63,428.52x = 87,531.12 × 35,133.60
  4. Step 4: Simplify right side
    63,428.52x = 3,075,283,357.63
  5. Step 5: Solve for x
    x = 3,075,283,357.63/63,428.52
  6. Step 6: Final answer
    x = 48,484.24

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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.