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Finding the Fourth Proportional to 60,698.34, 83,716.23 and 39,484.38

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Solution

The fourth proportional to 60,698.34, 83,716.23 and 39,484.38 is: 54,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,698.34 : 83,716.23 = 39,484.38 : x
  2. Step 2: Convert to fraction form
    60,698.34/83,716.23 = 39,484.38/x
  3. Step 3: Cross multiply
    60,698.34x = 83,716.23 × 39,484.38
  4. Step 4: Simplify right side
    60,698.34x = 3,305,483,437.49
  5. Step 5: Solve for x
    x = 3,305,483,437.49/60,698.34
  6. Step 6: Final answer
    x = 54,457.56

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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.