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Finding the Fourth Proportional to 15,762.53, 21,752.38 and 9,047.98

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Solution

The fourth proportional to 15,762.53, 21,752.38 and 9,047.98 is: 12,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762.53 : 21,752.38 = 9,047.98 : x
  2. Step 2: Convert to fraction form
    15,762.53/21,752.38 = 9,047.98/x
  3. Step 3: Cross multiply
    15,762.53x = 21,752.38 × 9,047.98
  4. Step 4: Simplify right side
    15,762.53x = 196,815,099.19
  5. Step 5: Solve for x
    x = 196,815,099.19/15,762.53
  6. Step 6: Final answer
    x = 12,486.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.