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Finding the Fourth Proportional to 64,805.60, 97,196.40 and 18,048.80

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Solution

The fourth proportional to 64,805.60, 97,196.40 and 18,048.80 is: 27,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,805.60 : 97,196.40 = 18,048.80 : x
  2. Step 2: Convert to fraction form
    64,805.60/97,196.40 = 18,048.80/x
  3. Step 3: Cross multiply
    64,805.60x = 97,196.40 × 18,048.80
  4. Step 4: Simplify right side
    64,805.60x = 1,754,278,384.32
  5. Step 5: Solve for x
    x = 1,754,278,384.32/64,805.60
  6. Step 6: Final answer
    x = 27,069.86

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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.