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Finding the Fourth Proportional to 92,498.40, 138,740.46 and 25,935

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Solution

The fourth proportional to 92,498.40, 138,740.46 and 25,935 is: 38,900.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,498.40 : 138,740.46 = 25,935 : x
  2. Step 2: Convert to fraction form
    92,498.40/138,740.46 = 25,935/x
  3. Step 3: Cross multiply
    92,498.40x = 138,740.46 × 25,935
  4. Step 4: Simplify right side
    92,498.40x = 3,598,233,830.10
  5. Step 5: Solve for x
    x = 3,598,233,830.10/92,498.40
  6. Step 6: Final answer
    x = 38,900.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.