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Finding the Fourth Proportional to 64,532.40, 96,798.60 and 17,785.20

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Solution

The fourth proportional to 64,532.40, 96,798.60 and 17,785.20 is: 26,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,532.40 : 96,798.60 = 17,785.20 : x
  2. Step 2: Convert to fraction form
    64,532.40/96,798.60 = 17,785.20/x
  3. Step 3: Cross multiply
    64,532.40x = 96,798.60 × 17,785.20
  4. Step 4: Simplify right side
    64,532.40x = 1,721,582,460.72
  5. Step 5: Solve for x
    x = 1,721,582,460.72/64,532.40
  6. Step 6: Final answer
    x = 26,677.80

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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.