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Finding the Fourth Proportional to 66,995.42, 100,495.35 and 33,697.31

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Solution

The fourth proportional to 66,995.42, 100,495.35 and 33,697.31 is: 50,547.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,995.42 : 100,495.35 = 33,697.31 : x
  2. Step 2: Convert to fraction form
    66,995.42/100,495.35 = 33,697.31/x
  3. Step 3: Cross multiply
    66,995.42x = 100,495.35 × 33,697.31
  4. Step 4: Simplify right side
    66,995.42x = 3,386,422,460.03
  5. Step 5: Solve for x
    x = 3,386,422,460.03/66,995.42
  6. Step 6: Final answer
    x = 50,547.08

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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.