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Finding the Fourth Proportional to 52,480.80, 72,424.26 and 28,607.48

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Solution

The fourth proportional to 52,480.80, 72,424.26 and 28,607.48 is: 39,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,480.80 : 72,424.26 = 28,607.48 : x
  2. Step 2: Convert to fraction form
    52,480.80/72,424.26 = 28,607.48/x
  3. Step 3: Cross multiply
    52,480.80x = 72,424.26 × 28,607.48
  4. Step 4: Simplify right side
    52,480.80x = 2,071,875,569.46
  5. Step 5: Solve for x
    x = 2,071,875,569.46/52,480.80
  6. Step 6: Final answer
    x = 39,478.73

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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.