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Finding the Fourth Proportional to 65,468.64, 90,347.34 and 37,174.92

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Solution

The fourth proportional to 65,468.64, 90,347.34 and 37,174.92 is: 51,301.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,468.64 : 90,347.34 = 37,174.92 : x
  2. Step 2: Convert to fraction form
    65,468.64/90,347.34 = 37,174.92/x
  3. Step 3: Cross multiply
    65,468.64x = 90,347.34 × 37,174.92
  4. Step 4: Simplify right side
    65,468.64x = 3,358,655,136.71
  5. Step 5: Solve for x
    x = 3,358,655,136.71/65,468.64
  6. Step 6: Final answer
    x = 51,301.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.