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Finding the Fourth Proportional to 58,753.10, 81,081 and 31,897.32

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Solution

The fourth proportional to 58,753.10, 81,081 and 31,897.32 is: 44,019.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,753.10 : 81,081 = 31,897.32 : x
  2. Step 2: Convert to fraction form
    58,753.10/81,081 = 31,897.32/x
  3. Step 3: Cross multiply
    58,753.10x = 81,081 × 31,897.32
  4. Step 4: Simplify right side
    58,753.10x = 2,586,266,602.92
  5. Step 5: Solve for x
    x = 2,586,266,602.92/58,753.10
  6. Step 6: Final answer
    x = 44,019.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.