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Finding the Fourth Proportional to 46,143, 63,662.76 and 28,229.04

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Solution

The fourth proportional to 46,143, 63,662.76 and 28,229.04 is: 38,947.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,143 : 63,662.76 = 28,229.04 : x
  2. Step 2: Convert to fraction form
    46,143/63,662.76 = 28,229.04/x
  3. Step 3: Cross multiply
    46,143x = 63,662.76 × 28,229.04
  4. Step 4: Simplify right side
    46,143x = 1,797,138,598.55
  5. Step 5: Solve for x
    x = 1,797,138,598.55/46,143
  6. Step 6: Final answer
    x = 38,947.16

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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.