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Finding the Fourth Proportional to 65,694.77, 90,649.69 and 37,009.63

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Solution

The fourth proportional to 65,694.77, 90,649.69 and 37,009.63 is: 51,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,694.77 : 90,649.69 = 37,009.63 : x
  2. Step 2: Convert to fraction form
    65,694.77/90,649.69 = 37,009.63/x
  3. Step 3: Cross multiply
    65,694.77x = 90,649.69 × 37,009.63
  4. Step 4: Simplify right side
    65,694.77x = 3,354,911,486.51
  5. Step 5: Solve for x
    x = 3,354,911,486.51/65,694.77
  6. Step 6: Final answer
    x = 51,068.17

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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.