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Finding the Fourth Proportional to 60,187.56, 90,278.64 and 28,574.52

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Solution

The fourth proportional to 60,187.56, 90,278.64 and 28,574.52 is: 42,860.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,187.56 : 90,278.64 = 28,574.52 : x
  2. Step 2: Convert to fraction form
    60,187.56/90,278.64 = 28,574.52/x
  3. Step 3: Cross multiply
    60,187.56x = 90,278.64 × 28,574.52
  4. Step 4: Simplify right side
    60,187.56x = 2,579,668,804.25
  5. Step 5: Solve for x
    x = 2,579,668,804.25/60,187.56
  6. Step 6: Final answer
    x = 42,860.50

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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.