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Finding the Fourth Proportional to 69,987.64, 96,582.94 and 39,773.02

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Solution

The fourth proportional to 69,987.64, 96,582.94 and 39,773.02 is: 54,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,987.64 : 96,582.94 = 39,773.02 : x
  2. Step 2: Convert to fraction form
    69,987.64/96,582.94 = 39,773.02/x
  3. Step 3: Cross multiply
    69,987.64x = 96,582.94 × 39,773.02
  4. Step 4: Simplify right side
    69,987.64x = 3,841,395,204.28
  5. Step 5: Solve for x
    x = 3,841,395,204.28/69,987.64
  6. Step 6: Final answer
    x = 54,886.77

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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.