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Finding the Fourth Proportional to 65,656.71, 90,605.70 and 37,363.95

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Solution

The fourth proportional to 65,656.71, 90,605.70 and 37,363.95 is: 51,561.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,656.71 : 90,605.70 = 37,363.95 : x
  2. Step 2: Convert to fraction form
    65,656.71/90,605.70 = 37,363.95/x
  3. Step 3: Cross multiply
    65,656.71x = 90,605.70 × 37,363.95
  4. Step 4: Simplify right side
    65,656.71x = 3,385,386,844.52
  5. Step 5: Solve for x
    x = 3,385,386,844.52/65,656.71
  6. Step 6: Final answer
    x = 51,561.93

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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.