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Finding the Fourth Proportional to 70,578.99, 97,399.18 and 38,749.94

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Solution

The fourth proportional to 70,578.99, 97,399.18 and 38,749.94 is: 53,475.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,578.99 : 97,399.18 = 38,749.94 : x
  2. Step 2: Convert to fraction form
    70,578.99/97,399.18 = 38,749.94/x
  3. Step 3: Cross multiply
    70,578.99x = 97,399.18 × 38,749.94
  4. Step 4: Simplify right side
    70,578.99x = 3,774,212,527.67
  5. Step 5: Solve for x
    x = 3,774,212,527.67/70,578.99
  6. Step 6: Final answer
    x = 53,475.01

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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.