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Finding the Fourth Proportional to 58,896.40, 88,387.80 and 39,168.40

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Solution

The fourth proportional to 58,896.40, 88,387.80 and 39,168.40 is: 58,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,896.40 : 88,387.80 = 39,168.40 : x
  2. Step 2: Convert to fraction form
    58,896.40/88,387.80 = 39,168.40/x
  3. Step 3: Cross multiply
    58,896.40x = 88,387.80 × 39,168.40
  4. Step 4: Simplify right side
    58,896.40x = 3,462,008,705.52
  5. Step 5: Solve for x
    x = 3,462,008,705.52/58,896.40
  6. Step 6: Final answer
    x = 58,781.33

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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.