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Finding the Fourth Proportional to 53,101.65, 73,278.87 and 28,903.08

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Solution

The fourth proportional to 53,101.65, 73,278.87 and 28,903.08 is: 39,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,101.65 : 73,278.87 = 28,903.08 : x
  2. Step 2: Convert to fraction form
    53,101.65/73,278.87 = 28,903.08/x
  3. Step 3: Cross multiply
    53,101.65x = 73,278.87 × 28,903.08
  4. Step 4: Simplify right side
    53,101.65x = 2,117,985,041.92
  5. Step 5: Solve for x
    x = 2,117,985,041.92/53,101.65
  6. Step 6: Final answer
    x = 39,885.48

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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.