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Finding the Fourth Proportional to 67,140, 92,653.36 and 37,332

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Solution

The fourth proportional to 67,140, 92,653.36 and 37,332 is: 51,518.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,140 : 92,653.36 = 37,332 : x
  2. Step 2: Convert to fraction form
    67,140/92,653.36 = 37,332/x
  3. Step 3: Cross multiply
    67,140x = 92,653.36 × 37,332
  4. Step 4: Simplify right side
    67,140x = 3,458,935,235.52
  5. Step 5: Solve for x
    x = 3,458,935,235.52/67,140
  6. Step 6: Final answer
    x = 51,518.25

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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.