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Finding the Fourth Proportional to 60,574.91, 90,859.02 and 21,134.79

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Solution

The fourth proportional to 60,574.91, 90,859.02 and 21,134.79 is: 31,701.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,574.91 : 90,859.02 = 21,134.79 : x
  2. Step 2: Convert to fraction form
    60,574.91/90,859.02 = 21,134.79/x
  3. Step 3: Cross multiply
    60,574.91x = 90,859.02 × 21,134.79
  4. Step 4: Simplify right side
    60,574.91x = 1,920,286,228.05
  5. Step 5: Solve for x
    x = 1,920,286,228.05/60,574.91
  6. Step 6: Final answer
    x = 31,701.02

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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.