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Finding the Fourth Proportional to 58,361.10, 87,553.95 and 18,915.14

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Solution

The fourth proportional to 58,361.10, 87,553.95 and 18,915.14 is: 28,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,361.10 : 87,553.95 = 18,915.14 : x
  2. Step 2: Convert to fraction form
    58,361.10/87,553.95 = 18,915.14/x
  3. Step 3: Cross multiply
    58,361.10x = 87,553.95 × 18,915.14
  4. Step 4: Simplify right side
    58,361.10x = 1,656,094,689.46
  5. Step 5: Solve for x
    x = 1,656,094,689.46/58,361.10
  6. Step 6: Final answer
    x = 28,376.69

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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.