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Finding the Fourth Proportional to 14,421.04, 19,904.24 and 9,376.48

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Solution

The fourth proportional to 14,421.04, 19,904.24 and 9,376.48 is: 12,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.04 : 19,904.24 = 9,376.48 : x
  2. Step 2: Convert to fraction form
    14,421.04/19,904.24 = 9,376.48/x
  3. Step 3: Cross multiply
    14,421.04x = 19,904.24 × 9,376.48
  4. Step 4: Simplify right side
    14,421.04x = 186,631,708.28
  5. Step 5: Solve for x
    x = 186,631,708.28/14,421.04
  6. Step 6: Final answer
    x = 12,941.63

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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.