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Finding the Fourth Proportional to 31,688.74, 47,533.74 and 9,502.48

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Solution

The fourth proportional to 31,688.74, 47,533.74 and 9,502.48 is: 14,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.74 : 47,533.74 = 9,502.48 : x
  2. Step 2: Convert to fraction form
    31,688.74/47,533.74 = 9,502.48/x
  3. Step 3: Cross multiply
    31,688.74x = 47,533.74 × 9,502.48
  4. Step 4: Simplify right side
    31,688.74x = 451,688,413.68
  5. Step 5: Solve for x
    x = 451,688,413.68/31,688.74
  6. Step 6: Final answer
    x = 14,253.91

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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.