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Finding the Fourth Proportional to 9,957.60, 14,968.80 and 9,374.40

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Solution

The fourth proportional to 9,957.60, 14,968.80 and 9,374.40 is: 14,092.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,957.60 : 14,968.80 = 9,374.40 : x
  2. Step 2: Convert to fraction form
    9,957.60/14,968.80 = 9,374.40/x
  3. Step 3: Cross multiply
    9,957.60x = 14,968.80 × 9,374.40
  4. Step 4: Simplify right side
    9,957.60x = 140,323,518.72
  5. Step 5: Solve for x
    x = 140,323,518.72/9,957.60
  6. Step 6: Final answer
    x = 14,092.10

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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.