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Finding the Fourth Proportional to 61,303.80, 91,955.70 and 31,730.70

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Solution

The fourth proportional to 61,303.80, 91,955.70 and 31,730.70 is: 47,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,303.80 : 91,955.70 = 31,730.70 : x
  2. Step 2: Convert to fraction form
    61,303.80/91,955.70 = 31,730.70/x
  3. Step 3: Cross multiply
    61,303.80x = 91,955.70 × 31,730.70
  4. Step 4: Simplify right side
    61,303.80x = 2,917,818,729.99
  5. Step 5: Solve for x
    x = 2,917,818,729.99/61,303.80
  6. Step 6: Final answer
    x = 47,596.05

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Similar ratio
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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.