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Finding the Fourth Proportional to 35,312.39, 48,731.39 and 19,397.19

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Solution

The fourth proportional to 35,312.39, 48,731.39 and 19,397.19 is: 26,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,312.39 : 48,731.39 = 19,397.19 : x
  2. Step 2: Convert to fraction form
    35,312.39/48,731.39 = 19,397.19/x
  3. Step 3: Cross multiply
    35,312.39x = 48,731.39 × 19,397.19
  4. Step 4: Simplify right side
    35,312.39x = 945,252,055.64
  5. Step 5: Solve for x
    x = 945,252,055.64/35,312.39
  6. Step 6: Final answer
    x = 26,768.29

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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.