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Finding the Fourth Proportional to 58,159.32, 80,334.90 and 48,128.28

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Solution

The fourth proportional to 58,159.32, 80,334.90 and 48,128.28 is: 66,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,159.32 : 80,334.90 = 48,128.28 : x
  2. Step 2: Convert to fraction form
    58,159.32/80,334.90 = 48,128.28/x
  3. Step 3: Cross multiply
    58,159.32x = 80,334.90 × 48,128.28
  4. Step 4: Simplify right side
    58,159.32x = 3,866,380,560.97
  5. Step 5: Solve for x
    x = 3,866,380,560.97/58,159.32
  6. Step 6: Final answer
    x = 66,479.12

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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.