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Finding the Fourth Proportional to 58,348.60, 87,407.70 and 34,905.40

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Solution

The fourth proportional to 58,348.60, 87,407.70 and 34,905.40 is: 52,289.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,348.60 : 87,407.70 = 34,905.40 : x
  2. Step 2: Convert to fraction form
    58,348.60/87,407.70 = 34,905.40/x
  3. Step 3: Cross multiply
    58,348.60x = 87,407.70 × 34,905.40
  4. Step 4: Simplify right side
    58,348.60x = 3,051,000,731.58
  5. Step 5: Solve for x
    x = 3,051,000,731.58/58,348.60
  6. Step 6: Final answer
    x = 52,289.18

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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.