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Finding the Fourth Proportional to 60,700.76, 91,051.14 and 19,151

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Solution

The fourth proportional to 60,700.76, 91,051.14 and 19,151 is: 28,726.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,700.76 : 91,051.14 = 19,151 : x
  2. Step 2: Convert to fraction form
    60,700.76/91,051.14 = 19,151/x
  3. Step 3: Cross multiply
    60,700.76x = 91,051.14 × 19,151
  4. Step 4: Simplify right side
    60,700.76x = 1,743,720,382.14
  5. Step 5: Solve for x
    x = 1,743,720,382.14/60,700.76
  6. Step 6: Final answer
    x = 28,726.50

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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.