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Finding the Fourth Proportional to 64,896.32, 89,556.48 and 35,088.32

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Solution

The fourth proportional to 64,896.32, 89,556.48 and 35,088.32 is: 48,421.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,896.32 : 89,556.48 = 35,088.32 : x
  2. Step 2: Convert to fraction form
    64,896.32/89,556.48 = 35,088.32/x
  3. Step 3: Cross multiply
    64,896.32x = 89,556.48 × 35,088.32
  4. Step 4: Simplify right side
    64,896.32x = 3,142,386,428.31
  5. Step 5: Solve for x
    x = 3,142,386,428.31/64,896.32
  6. Step 6: Final answer
    x = 48,421.64

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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.