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Finding the Fourth Proportional to 53,501.76, 80,264.80 and 28,528.64

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Solution

The fourth proportional to 53,501.76, 80,264.80 and 28,528.64 is: 42,799.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,501.76 : 80,264.80 = 28,528.64 : x
  2. Step 2: Convert to fraction form
    53,501.76/80,264.80 = 28,528.64/x
  3. Step 3: Cross multiply
    53,501.76x = 80,264.80 × 28,528.64
  4. Step 4: Simplify right side
    53,501.76x = 2,289,845,583.87
  5. Step 5: Solve for x
    x = 2,289,845,583.87/53,501.76
  6. Step 6: Final answer
    x = 42,799.44

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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.