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Finding the Fourth Proportional to 57,695.40, 86,543.10 and 26,591.40

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Solution

The fourth proportional to 57,695.40, 86,543.10 and 26,591.40 is: 39,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,695.40 : 86,543.10 = 26,591.40 : x
  2. Step 2: Convert to fraction form
    57,695.40/86,543.10 = 26,591.40/x
  3. Step 3: Cross multiply
    57,695.40x = 86,543.10 × 26,591.40
  4. Step 4: Simplify right side
    57,695.40x = 2,301,302,189.34
  5. Step 5: Solve for x
    x = 2,301,302,189.34/57,695.40
  6. Step 6: Final answer
    x = 39,887.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.