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Finding the Fourth Proportional to 65,425.44, 90,288.54 and 46,339.32

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Solution

The fourth proportional to 65,425.44, 90,288.54 and 46,339.32 is: 63,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,425.44 : 90,288.54 = 46,339.32 : x
  2. Step 2: Convert to fraction form
    65,425.44/90,288.54 = 46,339.32/x
  3. Step 3: Cross multiply
    65,425.44x = 90,288.54 × 46,339.32
  4. Step 4: Simplify right side
    65,425.44x = 4,183,909,547.39
  5. Step 5: Solve for x
    x = 4,183,909,547.39/65,425.44
  6. Step 6: Final answer
    x = 63,949.28

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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.