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Finding the Fourth Proportional to 58,576.40, 87,864.60 and 38,877.20

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Solution

The fourth proportional to 58,576.40, 87,864.60 and 38,877.20 is: 58,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,576.40 : 87,864.60 = 38,877.20 : x
  2. Step 2: Convert to fraction form
    58,576.40/87,864.60 = 38,877.20/x
  3. Step 3: Cross multiply
    58,576.40x = 87,864.60 × 38,877.20
  4. Step 4: Simplify right side
    58,576.40x = 3,415,929,627.12
  5. Step 5: Solve for x
    x = 3,415,929,627.12/58,576.40
  6. Step 6: Final answer
    x = 58,315.80

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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.