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Finding the Fourth Proportional to 21,048.95, 31,574.99 and 6,055.47

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Solution

The fourth proportional to 21,048.95, 31,574.99 and 6,055.47 is: 9,083.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048.95 : 31,574.99 = 6,055.47 : x
  2. Step 2: Convert to fraction form
    21,048.95/31,574.99 = 6,055.47/x
  3. Step 3: Cross multiply
    21,048.95x = 31,574.99 × 6,055.47
  4. Step 4: Simplify right side
    21,048.95x = 191,201,374.42
  5. Step 5: Solve for x
    x = 191,201,374.42/21,048.95
  6. Step 6: Final answer
    x = 9,083.66

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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.