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Finding the Fourth Proportional to 60,158.34, 90,235.64 and 28,591.13

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Solution

The fourth proportional to 60,158.34, 90,235.64 and 28,591.13 is: 42,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,158.34 : 90,235.64 = 28,591.13 : x
  2. Step 2: Convert to fraction form
    60,158.34/90,235.64 = 28,591.13/x
  3. Step 3: Cross multiply
    60,158.34x = 90,235.64 × 28,591.13
  4. Step 4: Simplify right side
    60,158.34x = 2,579,939,210.94
  5. Step 5: Solve for x
    x = 2,579,939,210.94/60,158.34
  6. Step 6: Final answer
    x = 42,885.81

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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.