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Finding the Fourth Proportional to 58,209.78, 80,339.16 and 34,342.32

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Solution

The fourth proportional to 58,209.78, 80,339.16 and 34,342.32 is: 47,398.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,209.78 : 80,339.16 = 34,342.32 : x
  2. Step 2: Convert to fraction form
    58,209.78/80,339.16 = 34,342.32/x
  3. Step 3: Cross multiply
    58,209.78x = 80,339.16 × 34,342.32
  4. Step 4: Simplify right side
    58,209.78x = 2,759,033,141.25
  5. Step 5: Solve for x
    x = 2,759,033,141.25/58,209.78
  6. Step 6: Final answer
    x = 47,398.10

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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.