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Finding the Fourth Proportional to 46,681.65, 69,980.76 and 20,365.56

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Solution

The fourth proportional to 46,681.65, 69,980.76 and 20,365.56 is: 30,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,681.65 : 69,980.76 = 20,365.56 : x
  2. Step 2: Convert to fraction form
    46,681.65/69,980.76 = 20,365.56/x
  3. Step 3: Cross multiply
    46,681.65x = 69,980.76 × 20,365.56
  4. Step 4: Simplify right side
    46,681.65x = 1,425,197,366.63
  5. Step 5: Solve for x
    x = 1,425,197,366.63/46,681.65
  6. Step 6: Final answer
    x = 30,530.14

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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.