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Finding the Fourth Proportional to 64,509.30, 89,007.25 and 37,636.47

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Solution

The fourth proportional to 64,509.30, 89,007.25 and 37,636.47 is: 51,929.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,509.30 : 89,007.25 = 37,636.47 : x
  2. Step 2: Convert to fraction form
    64,509.30/89,007.25 = 37,636.47/x
  3. Step 3: Cross multiply
    64,509.30x = 89,007.25 × 37,636.47
  4. Step 4: Simplify right side
    64,509.30x = 3,349,918,694.41
  5. Step 5: Solve for x
    x = 3,349,918,694.41/64,509.30
  6. Step 6: Final answer
    x = 51,929.24

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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.