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Finding the Fourth Proportional to 58,775.96, 81,110.94 and 31,918.16

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Solution

The fourth proportional to 58,775.96, 81,110.94 and 31,918.16 is: 44,047.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,775.96 : 81,110.94 = 31,918.16 : x
  2. Step 2: Convert to fraction form
    58,775.96/81,110.94 = 31,918.16/x
  3. Step 3: Cross multiply
    58,775.96x = 81,110.94 × 31,918.16
  4. Step 4: Simplify right side
    58,775.96x = 2,588,911,960.67
  5. Step 5: Solve for x
    x = 2,588,911,960.67/58,775.96
  6. Step 6: Final answer
    x = 44,047.12

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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.