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Finding the Fourth Proportional to 64,951.70, 97,427.55 and 54,454.10

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Solution

The fourth proportional to 64,951.70, 97,427.55 and 54,454.10 is: 81,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,951.70 : 97,427.55 = 54,454.10 : x
  2. Step 2: Convert to fraction form
    64,951.70/97,427.55 = 54,454.10/x
  3. Step 3: Cross multiply
    64,951.70x = 97,427.55 × 54,454.10
  4. Step 4: Simplify right side
    64,951.70x = 5,305,329,550.46
  5. Step 5: Solve for x
    x = 5,305,329,550.46/64,951.70
  6. Step 6: Final answer
    x = 81,681.15

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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.