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Finding the Fourth Proportional to 62,702.28, 86,528.03 and 35,478.09

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Solution

The fourth proportional to 62,702.28, 86,528.03 and 35,478.09 is: 48,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,702.28 : 86,528.03 = 35,478.09 : x
  2. Step 2: Convert to fraction form
    62,702.28/86,528.03 = 35,478.09/x
  3. Step 3: Cross multiply
    62,702.28x = 86,528.03 × 35,478.09
  4. Step 4: Simplify right side
    62,702.28x = 3,069,849,058.47
  5. Step 5: Solve for x
    x = 3,069,849,058.47/62,702.28
  6. Step 6: Final answer
    x = 48,959.13

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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.