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Finding the Fourth Proportional to 60,615.46, 90,917.45 and 28,587.09

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Solution

The fourth proportional to 60,615.46, 90,917.45 and 28,587.09 is: 42,877.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,615.46 : 90,917.45 = 28,587.09 : x
  2. Step 2: Convert to fraction form
    60,615.46/90,917.45 = 28,587.09/x
  3. Step 3: Cross multiply
    60,615.46x = 90,917.45 × 28,587.09
  4. Step 4: Simplify right side
    60,615.46x = 2,599,065,325.72
  5. Step 5: Solve for x
    x = 2,599,065,325.72/60,615.46
  6. Step 6: Final answer
    x = 42,877.93

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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.