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Finding the Fourth Proportional to 73,422.36, 101,322.18 and 39,888.36

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Solution

The fourth proportional to 73,422.36, 101,322.18 and 39,888.36 is: 55,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,422.36 : 101,322.18 = 39,888.36 : x
  2. Step 2: Convert to fraction form
    73,422.36/101,322.18 = 39,888.36/x
  3. Step 3: Cross multiply
    73,422.36x = 101,322.18 × 39,888.36
  4. Step 4: Simplify right side
    73,422.36x = 4,041,575,591.82
  5. Step 5: Solve for x
    x = 4,041,575,591.82/73,422.36
  6. Step 6: Final answer
    x = 55,045.57

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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.