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Finding the Fourth Proportional to 55,807.92, 77,018.04 and 31,929.12

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Solution

The fourth proportional to 55,807.92, 77,018.04 and 31,929.12 is: 44,063.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,807.92 : 77,018.04 = 31,929.12 : x
  2. Step 2: Convert to fraction form
    55,807.92/77,018.04 = 31,929.12/x
  3. Step 3: Cross multiply
    55,807.92x = 77,018.04 × 31,929.12
  4. Step 4: Simplify right side
    55,807.92x = 2,459,118,241.32
  5. Step 5: Solve for x
    x = 2,459,118,241.32/55,807.92
  6. Step 6: Final answer
    x = 44,063.97

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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.