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Finding the Fourth Proportional to 26,795.52, 36,978.12 and 14,859.18

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Solution

The fourth proportional to 26,795.52, 36,978.12 and 14,859.18 is: 20,505.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,795.52 : 36,978.12 = 14,859.18 : x
  2. Step 2: Convert to fraction form
    26,795.52/36,978.12 = 14,859.18/x
  3. Step 3: Cross multiply
    26,795.52x = 36,978.12 × 14,859.18
  4. Step 4: Simplify right side
    26,795.52x = 549,464,541.14
  5. Step 5: Solve for x
    x = 549,464,541.14/26,795.52
  6. Step 6: Final answer
    x = 20,505.84

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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.