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Finding the Fourth Proportional to 60,573.71, 90,859.74 and 21,130.62

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Solution

The fourth proportional to 60,573.71, 90,859.74 and 21,130.62 is: 31,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,573.71 : 90,859.74 = 21,130.62 : x
  2. Step 2: Convert to fraction form
    60,573.71/90,859.74 = 21,130.62/x
  3. Step 3: Cross multiply
    60,573.71x = 90,859.74 × 21,130.62
  4. Step 4: Simplify right side
    60,573.71x = 1,919,922,639.24
  5. Step 5: Solve for x
    x = 1,919,922,639.24/60,573.71
  6. Step 6: Final answer
    x = 31,695.64

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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.