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Finding the Fourth Proportional to 64,904.16, 89,567.29 and 37,678.06

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Solution

The fourth proportional to 64,904.16, 89,567.29 and 37,678.06 is: 51,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,904.16 : 89,567.29 = 37,678.06 : x
  2. Step 2: Convert to fraction form
    64,904.16/89,567.29 = 37,678.06/x
  3. Step 3: Cross multiply
    64,904.16x = 89,567.29 × 37,678.06
  4. Step 4: Simplify right side
    64,904.16x = 3,374,721,991.68
  5. Step 5: Solve for x
    x = 3,374,721,991.68/64,904.16
  6. Step 6: Final answer
    x = 51,995.46

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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.