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Finding the Fourth Proportional to 58,560.87, 87,928.79 and 57,686.07

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Solution

The fourth proportional to 58,560.87, 87,928.79 and 57,686.07 is: 86,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,560.87 : 87,928.79 = 57,686.07 : x
  2. Step 2: Convert to fraction form
    58,560.87/87,928.79 = 57,686.07/x
  3. Step 3: Cross multiply
    58,560.87x = 87,928.79 × 57,686.07
  4. Step 4: Simplify right side
    58,560.87x = 5,072,266,046.52
  5. Step 5: Solve for x
    x = 5,072,266,046.52/58,560.87
  6. Step 6: Final answer
    x = 86,615.28

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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.