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Finding the Fourth Proportional to 60,011.51, 90,017.19 and 18,458.51

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Solution

The fourth proportional to 60,011.51, 90,017.19 and 18,458.51 is: 27,687.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,011.51 : 90,017.19 = 18,458.51 : x
  2. Step 2: Convert to fraction form
    60,011.51/90,017.19 = 18,458.51/x
  3. Step 3: Cross multiply
    60,011.51x = 90,017.19 × 18,458.51
  4. Step 4: Simplify right side
    60,011.51x = 1,661,582,751.70
  5. Step 5: Solve for x
    x = 1,661,582,751.70/60,011.51
  6. Step 6: Final answer
    x = 27,687.74

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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.