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Finding the Fourth Proportional to 32,391.36, 48,566.88 and 13,661.76

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Solution

The fourth proportional to 32,391.36, 48,566.88 and 13,661.76 is: 20,484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,391.36 : 48,566.88 = 13,661.76 : x
  2. Step 2: Convert to fraction form
    32,391.36/48,566.88 = 13,661.76/x
  3. Step 3: Cross multiply
    32,391.36x = 48,566.88 × 13,661.76
  4. Step 4: Simplify right side
    32,391.36x = 663,509,058.51
  5. Step 5: Solve for x
    x = 663,509,058.51/32,391.36
  6. Step 6: Final answer
    x = 20,484.14

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1.5x scale

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.