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Finding the Fourth Proportional to 56,059, 77,361.58 and 30,565.64

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Solution

The fourth proportional to 56,059, 77,361.58 and 30,565.64 is: 42,180.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,059 : 77,361.58 = 30,565.64 : x
  2. Step 2: Convert to fraction form
    56,059/77,361.58 = 30,565.64/x
  3. Step 3: Cross multiply
    56,059x = 77,361.58 × 30,565.64
  4. Step 4: Simplify right side
    56,059x = 2,364,606,204.11
  5. Step 5: Solve for x
    x = 2,364,606,204.11/56,059
  6. Step 6: Final answer
    x = 42,180.67

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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.