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Finding the Fourth Proportional to 9,903.99, 14,858.46 and 6,987.99

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Solution

The fourth proportional to 9,903.99, 14,858.46 and 6,987.99 is: 10,483.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.99 : 14,858.46 = 6,987.99 : x
  2. Step 2: Convert to fraction form
    9,903.99/14,858.46 = 6,987.99/x
  3. Step 3: Cross multiply
    9,903.99x = 14,858.46 × 6,987.99
  4. Step 4: Simplify right side
    9,903.99x = 103,830,769.90
  5. Step 5: Solve for x
    x = 103,830,769.90/9,903.99
  6. Step 6: Final answer
    x = 10,483.73

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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.