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Finding the Fourth Proportional to 65,548.99, 90,465.30 and 37,258.93

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Solution

The fourth proportional to 65,548.99, 90,465.30 and 37,258.93 is: 51,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,548.99 : 90,465.30 = 37,258.93 : x
  2. Step 2: Convert to fraction form
    65,548.99/90,465.30 = 37,258.93/x
  3. Step 3: Cross multiply
    65,548.99x = 90,465.30 × 37,258.93
  4. Step 4: Simplify right side
    65,548.99x = 3,370,640,280.13
  5. Step 5: Solve for x
    x = 3,370,640,280.13/65,548.99
  6. Step 6: Final answer
    x = 51,421.70

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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.