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Finding the Fourth Proportional to 43,030.44, 64,545.66 and 15,309

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Solution

The fourth proportional to 43,030.44, 64,545.66 and 15,309 is: 22,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,030.44 : 64,545.66 = 15,309 : x
  2. Step 2: Convert to fraction form
    43,030.44/64,545.66 = 15,309/x
  3. Step 3: Cross multiply
    43,030.44x = 64,545.66 × 15,309
  4. Step 4: Simplify right side
    43,030.44x = 988,129,508.94
  5. Step 5: Solve for x
    x = 988,129,508.94/43,030.44
  6. Step 6: Final answer
    x = 22,963.50

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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.