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Finding the Fourth Proportional to 77,313.40, 115,959.30 and 24,728.20

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Solution

The fourth proportional to 77,313.40, 115,959.30 and 24,728.20 is: 37,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,313.40 : 115,959.30 = 24,728.20 : x
  2. Step 2: Convert to fraction form
    77,313.40/115,959.30 = 24,728.20/x
  3. Step 3: Cross multiply
    77,313.40x = 115,959.30 × 24,728.20
  4. Step 4: Simplify right side
    77,313.40x = 2,867,464,762.26
  5. Step 5: Solve for x
    x = 2,867,464,762.26/77,313.40
  6. Step 6: Final answer
    x = 37,088.85

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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.