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Finding the Fourth Proportional to 40,703.65, 61,066.28 and 14,405.65

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Solution

The fourth proportional to 40,703.65, 61,066.28 and 14,405.65 is: 21,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,703.65 : 61,066.28 = 14,405.65 : x
  2. Step 2: Convert to fraction form
    40,703.65/61,066.28 = 14,405.65/x
  3. Step 3: Cross multiply
    40,703.65x = 61,066.28 × 14,405.65
  4. Step 4: Simplify right side
    40,703.65x = 879,699,384.45
  5. Step 5: Solve for x
    x = 879,699,384.45/40,703.65
  6. Step 6: Final answer
    x = 21,612.30

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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.