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Finding the Fourth Proportional to 58,791.61, 88,210.79 and 18,816.76

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Solution

The fourth proportional to 58,791.61, 88,210.79 and 18,816.76 is: 28,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,791.61 : 88,210.79 = 18,816.76 : x
  2. Step 2: Convert to fraction form
    58,791.61/88,210.79 = 18,816.76/x
  3. Step 3: Cross multiply
    58,791.61x = 88,210.79 × 18,816.76
  4. Step 4: Simplify right side
    58,791.61x = 1,659,841,264.84
  5. Step 5: Solve for x
    x = 1,659,841,264.84/58,791.61
  6. Step 6: Final answer
    x = 28,232.62

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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.