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Finding the Fourth Proportional to 43,465.54, 65,220.54 and 20,695.16

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Solution

The fourth proportional to 43,465.54, 65,220.54 and 20,695.16 is: 31,053.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,465.54 : 65,220.54 = 20,695.16 : x
  2. Step 2: Convert to fraction form
    43,465.54/65,220.54 = 20,695.16/x
  3. Step 3: Cross multiply
    43,465.54x = 65,220.54 × 20,695.16
  4. Step 4: Simplify right side
    43,465.54x = 1,349,749,510.59
  5. Step 5: Solve for x
    x = 1,349,749,510.59/43,465.54
  6. Step 6: Final answer
    x = 31,053.32

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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.