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Finding the Fourth Proportional to 56,015.66, 77,300.69 and 30,522.32

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Solution

The fourth proportional to 56,015.66, 77,300.69 and 30,522.32 is: 42,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,015.66 : 77,300.69 = 30,522.32 : x
  2. Step 2: Convert to fraction form
    56,015.66/77,300.69 = 30,522.32/x
  3. Step 3: Cross multiply
    56,015.66x = 77,300.69 × 30,522.32
  4. Step 4: Simplify right side
    56,015.66x = 2,359,396,648.13
  5. Step 5: Solve for x
    x = 2,359,396,648.13/56,015.66
  6. Step 6: Final answer
    x = 42,120.31

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1.5x scale

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.