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Finding the Fourth Proportional to 18,802.60, 26,358.20 and 18,802.60

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Solution

The fourth proportional to 18,802.60, 26,358.20 and 18,802.60 is: 26,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,802.60 : 26,358.20 = 18,802.60 : x
  2. Step 2: Convert to fraction form
    18,802.60/26,358.20 = 18,802.60/x
  3. Step 3: Cross multiply
    18,802.60x = 26,358.20 × 18,802.60
  4. Step 4: Simplify right side
    18,802.60x = 495,602,691.32
  5. Step 5: Solve for x
    x = 495,602,691.32/18,802.60
  6. Step 6: Final answer
    x = 26,358.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.