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Finding the Fourth Proportional to 9,807.60, 14,687.10 and 9,370.20

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Solution

The fourth proportional to 9,807.60, 14,687.10 and 9,370.20 is: 14,032.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,807.60 : 14,687.10 = 9,370.20 : x
  2. Step 2: Convert to fraction form
    9,807.60/14,687.10 = 9,370.20/x
  3. Step 3: Cross multiply
    9,807.60x = 14,687.10 × 9,370.20
  4. Step 4: Simplify right side
    9,807.60x = 137,621,064.42
  5. Step 5: Solve for x
    x = 137,621,064.42/9,807.60
  6. Step 6: Final answer
    x = 14,032.08

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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.