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Finding the Fourth Proportional to 64,904.94, 89,537.58 and 38,030.76

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Solution

The fourth proportional to 64,904.94, 89,537.58 and 38,030.76 is: 52,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,904.94 : 89,537.58 = 38,030.76 : x
  2. Step 2: Convert to fraction form
    64,904.94/89,537.58 = 38,030.76/x
  3. Step 3: Cross multiply
    64,904.94x = 89,537.58 × 38,030.76
  4. Step 4: Simplify right side
    64,904.94x = 3,405,182,215.96
  5. Step 5: Solve for x
    x = 3,405,182,215.96/64,904.94
  6. Step 6: Final answer
    x = 52,464.15

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Double scale
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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.