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Finding the Fourth Proportional to 64,887.64, 97,284.71 and 39,875.99

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Solution

The fourth proportional to 64,887.64, 97,284.71 and 39,875.99 is: 59,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,887.64 : 97,284.71 = 39,875.99 : x
  2. Step 2: Convert to fraction form
    64,887.64/97,284.71 = 39,875.99/x
  3. Step 3: Cross multiply
    64,887.64x = 97,284.71 × 39,875.99
  4. Step 4: Simplify right side
    64,887.64x = 3,879,323,736.38
  5. Step 5: Solve for x
    x = 3,879,323,736.38/64,887.64
  6. Step 6: Final answer
    x = 59,785.25

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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.