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Finding the Fourth Proportional to 52,061.77, 78,124.79 and 20,466.30

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Solution

The fourth proportional to 52,061.77, 78,124.79 and 20,466.30 is: 30,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,061.77 : 78,124.79 = 20,466.30 : x
  2. Step 2: Convert to fraction form
    52,061.77/78,124.79 = 20,466.30/x
  3. Step 3: Cross multiply
    52,061.77x = 78,124.79 × 20,466.30
  4. Step 4: Simplify right side
    52,061.77x = 1,598,925,389.58
  5. Step 5: Solve for x
    x = 1,598,925,389.58/52,061.77
  6. Step 6: Final answer
    x = 30,712.08

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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.