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Finding the Fourth Proportional to 60,515.94, 90,758.48 and 42,911.94

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Solution

The fourth proportional to 60,515.94, 90,758.48 and 42,911.94 is: 64,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,515.94 : 90,758.48 = 42,911.94 : x
  2. Step 2: Convert to fraction form
    60,515.94/90,758.48 = 42,911.94/x
  3. Step 3: Cross multiply
    60,515.94x = 90,758.48 × 42,911.94
  4. Step 4: Simplify right side
    60,515.94x = 3,894,622,574.04
  5. Step 5: Solve for x
    x = 3,894,622,574.04/60,515.94
  6. Step 6: Final answer
    x = 64,356.97

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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.