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Finding the Fourth Proportional to 58,598.16, 80,865.45 and 31,740.45

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Solution

The fourth proportional to 58,598.16, 80,865.45 and 31,740.45 is: 43,801.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,598.16 : 80,865.45 = 31,740.45 : x
  2. Step 2: Convert to fraction form
    58,598.16/80,865.45 = 31,740.45/x
  3. Step 3: Cross multiply
    58,598.16x = 80,865.45 × 31,740.45
  4. Step 4: Simplify right side
    58,598.16x = 2,566,705,772.45
  5. Step 5: Solve for x
    x = 2,566,705,772.45/58,598.16
  6. Step 6: Final answer
    x = 43,801.82

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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.