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Finding the Fourth Proportional to 62,290.91, 85,963.32 and 35,428.47

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Solution

The fourth proportional to 62,290.91, 85,963.32 and 35,428.47 is: 48,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,290.91 : 85,963.32 = 35,428.47 : x
  2. Step 2: Convert to fraction form
    62,290.91/85,963.32 = 35,428.47/x
  3. Step 3: Cross multiply
    62,290.91x = 85,963.32 × 35,428.47
  4. Step 4: Simplify right side
    62,290.91x = 3,045,548,903.72
  5. Step 5: Solve for x
    x = 3,045,548,903.72/62,290.91
  6. Step 6: Final answer
    x = 48,892.35

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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.