Home / 66,302.16-99,433.34-18,913.92

Finding the Fourth Proportional to 66,302.16, 99,433.34 and 18,913.92

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Solution

The fourth proportional to 66,302.16, 99,433.34 and 18,913.92 is: 28,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,302.16 : 99,433.34 = 18,913.92 : x
  2. Step 2: Convert to fraction form
    66,302.16/99,433.34 = 18,913.92/x
  3. Step 3: Cross multiply
    66,302.16x = 99,433.34 × 18,913.92
  4. Step 4: Simplify right side
    66,302.16x = 1,880,674,238.09
  5. Step 5: Solve for x
    x = 1,880,674,238.09/66,302.16
  6. Step 6: Final answer
    x = 28,365.20

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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.