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Finding the Fourth Proportional to 77,891.40, 116,837.10 and 25,302.60

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Solution

The fourth proportional to 77,891.40, 116,837.10 and 25,302.60 is: 37,953.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,891.40 : 116,837.10 = 25,302.60 : x
  2. Step 2: Convert to fraction form
    77,891.40/116,837.10 = 25,302.60/x
  3. Step 3: Cross multiply
    77,891.40x = 116,837.10 × 25,302.60
  4. Step 4: Simplify right side
    77,891.40x = 2,956,282,406.46
  5. Step 5: Solve for x
    x = 2,956,282,406.46/77,891.40
  6. Step 6: Final answer
    x = 37,953.90

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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.