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Finding the Fourth Proportional to 60,373.44, 90,569.76 and 20,942.40

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Solution

The fourth proportional to 60,373.44, 90,569.76 and 20,942.40 is: 31,416.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,373.44 : 90,569.76 = 20,942.40 : x
  2. Step 2: Convert to fraction form
    60,373.44/90,569.76 = 20,942.40/x
  3. Step 3: Cross multiply
    60,373.44x = 90,569.76 × 20,942.40
  4. Step 4: Simplify right side
    60,373.44x = 1,896,748,141.82
  5. Step 5: Solve for x
    x = 1,896,748,141.82/60,373.44
  6. Step 6: Final answer
    x = 31,416.93

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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.