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Finding the Fourth Proportional to 60,574.96, 90,862.86 and 21,131.92

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Solution

The fourth proportional to 60,574.96, 90,862.86 and 21,131.92 is: 31,698.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,574.96 : 90,862.86 = 21,131.92 : x
  2. Step 2: Convert to fraction form
    60,574.96/90,862.86 = 21,131.92/x
  3. Step 3: Cross multiply
    60,574.96x = 90,862.86 × 21,131.92
  4. Step 4: Simplify right side
    60,574.96x = 1,920,106,688.49
  5. Step 5: Solve for x
    x = 1,920,106,688.49/60,574.96
  6. Step 6: Final answer
    x = 31,698.03

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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.