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Finding the Fourth Proportional to 14,325.80, 19,762.80 and 9,291.64

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Solution

The fourth proportional to 14,325.80, 19,762.80 and 9,291.64 is: 12,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325.80 : 19,762.80 = 9,291.64 : x
  2. Step 2: Convert to fraction form
    14,325.80/19,762.80 = 9,291.64/x
  3. Step 3: Cross multiply
    14,325.80x = 19,762.80 × 9,291.64
  4. Step 4: Simplify right side
    14,325.80x = 183,628,822.99
  5. Step 5: Solve for x
    x = 183,628,822.99/14,325.80
  6. Step 6: Final answer
    x = 12,818.05

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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.