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Finding the Fourth Proportional to 70,707.67, 97,578.50 and 38,444.45

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Solution

The fourth proportional to 70,707.67, 97,578.50 and 38,444.45 is: 53,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,707.67 : 97,578.50 = 38,444.45 : x
  2. Step 2: Convert to fraction form
    70,707.67/97,578.50 = 38,444.45/x
  3. Step 3: Cross multiply
    70,707.67x = 97,578.50 × 38,444.45
  4. Step 4: Simplify right side
    70,707.67x = 3,751,351,084.21
  5. Step 5: Solve for x
    x = 3,751,351,084.21/70,707.67
  6. Step 6: Final answer
    x = 53,054.37

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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.