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Finding the Fourth Proportional to 58,109.46, 87,152.85 and 15,978.74

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Solution

The fourth proportional to 58,109.46, 87,152.85 and 15,978.74 is: 23,964.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,109.46 : 87,152.85 = 15,978.74 : x
  2. Step 2: Convert to fraction form
    58,109.46/87,152.85 = 15,978.74/x
  3. Step 3: Cross multiply
    58,109.46x = 87,152.85 × 15,978.74
  4. Step 4: Simplify right side
    58,109.46x = 1,392,592,294.64
  5. Step 5: Solve for x
    x = 1,392,592,294.64/58,109.46
  6. Step 6: Final answer
    x = 23,964.98

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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.