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Finding the Fourth Proportional to 53,356.32, 73,631.44 and 29,484.64

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Solution

The fourth proportional to 53,356.32, 73,631.44 and 29,484.64 is: 40,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,356.32 : 73,631.44 = 29,484.64 : x
  2. Step 2: Convert to fraction form
    53,356.32/73,631.44 = 29,484.64/x
  3. Step 3: Cross multiply
    53,356.32x = 73,631.44 × 29,484.64
  4. Step 4: Simplify right side
    53,356.32x = 2,170,996,501.08
  5. Step 5: Solve for x
    x = 2,170,996,501.08/53,356.32
  6. Step 6: Final answer
    x = 40,688.65

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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.