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Finding the Fourth Proportional to 70,773.99, 97,668.78 and 38,943.57

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Solution

The fourth proportional to 70,773.99, 97,668.78 and 38,943.57 is: 53,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,773.99 : 97,668.78 = 38,943.57 : x
  2. Step 2: Convert to fraction form
    70,773.99/97,668.78 = 38,943.57/x
  3. Step 3: Cross multiply
    70,773.99x = 97,668.78 × 38,943.57
  4. Step 4: Simplify right side
    70,773.99x = 3,803,570,482.40
  5. Step 5: Solve for x
    x = 3,803,570,482.40/70,773.99
  6. Step 6: Final answer
    x = 53,742.49

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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.