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Finding the Fourth Proportional to 70,052.90, 105,071.58 and 25,072.45

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Solution

The fourth proportional to 70,052.90, 105,071.58 and 25,072.45 is: 37,605.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,052.90 : 105,071.58 = 25,072.45 : x
  2. Step 2: Convert to fraction form
    70,052.90/105,071.58 = 25,072.45/x
  3. Step 3: Cross multiply
    70,052.90x = 105,071.58 × 25,072.45
  4. Step 4: Simplify right side
    70,052.90x = 2,634,401,673.29
  5. Step 5: Solve for x
    x = 2,634,401,673.29/70,052.90
  6. Step 6: Final answer
    x = 37,605.89

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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.