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Finding the Fourth Proportional to 19,242.40, 26,540.40 and 13,946.08

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Solution

The fourth proportional to 19,242.40, 26,540.40 and 13,946.08 is: 19,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,242.40 : 26,540.40 = 13,946.08 : x
  2. Step 2: Convert to fraction form
    19,242.40/26,540.40 = 13,946.08/x
  3. Step 3: Cross multiply
    19,242.40x = 26,540.40 × 13,946.08
  4. Step 4: Simplify right side
    19,242.40x = 370,134,541.63
  5. Step 5: Solve for x
    x = 370,134,541.63/19,242.40
  6. Step 6: Final answer
    x = 19,235.36

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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.